Explanation
Marketing Cloud Account Engagement uses a tracking pixel to track HTML email opens. A tracking pixel is a small image that is embedded in an HTML email, and it loads when the recipient opens the email and downloads the images. Marketing Cloud Account Engagement uses the tracking pixel to record the email open activity and associate it with the prospect record. Marketing Cloud Account Engagement does not use a tracking link to track HTML email opens, because a tracking link is a link that is modified by Marketing Cloud Account Engagement to track the click activity and redirect the recipient to the original URL.
Marketing Cloud Account Engagement does not track email opens only if a link is clicked, because email opens and link clicks are different activities that are tracked separately. Marketing Cloud Account Engagement does not use a tracking pixel to track text email opens, because text emails do not support images or HTML.

Explanation
The automation tool that the Administrator should use to create this list is a dynamic list. A dynamic list is a list that automatically populates with prospects who match the criteria you set. You can use a dynamic list to segment your prospects based on their attributes or behaviors, such as their opportunity stage, score, or email activity. A dynamic list is constantly updated, so prospects are added or removed from the list as they meet or no longer meet the criteria. A dynamic list is ideal for creating a list of prospects who are in the prospecting stage of the opportunity, and removing them from the list once they move to another stage.

According to the Salesforce documentation, the recommended way to change the scheduled send date for the email is to edit the scheduled email, select Wednesday for the new date, and save it. A scheduled email is an email that is set to be sent at a future date and time. A scheduled email can be edited or canceled before the scheduled send time. To edit a scheduled email, the user can go to the Scheduled tab in Email Studio, select the email, and click Edit. The user can then change the send date and time, as well as other settings, and save the changes. Editing the engagement studio program, deleting the engagement studio program, or deleting the scheduled email are not the recommended ways to change the scheduled send date for the email, as they are either unnecessary, ineffective, or irreversible actions. Reference: Salesforce documentation

Explanation
According to the Salesforce documentation, a prospect's score can be changed through automation rules, scoring model changes, or completion actions. A prospect's score is a numerical value that indicates the level of interest and engagement of a prospect, based on their activities, such as opening an email, clicking a link, or submitting a form. A prospect's score can be changed by using different methods, such as:
* Automation rules: An automation rule is an automation tool that can be used to update a prospect's score when the prospect meets certain criteria, such as prospect field values, activities, or scores. For example, an automation rule can be created to increase a prospect's score by 10 points when the prospect visits a specific web page.
* Scoring model changes: A scoring model is a feature that allows users to customize the scoring rules for different types of activities, such as email opens, form submissions, or custom redirects. A scoring model can be changed by editing the default scoring model in Marketing Cloud Account Engagement, or by creating a custom scoring model for a specific group of prospects. For example, a scoring model can be changed to assign more points to an email open, or to create a different scoring model for prospects from a certain industry.
* Completion actions: A completion action is an automation tool that can be used to adjust a prospect's score after the prospect successfully completes a marketing element, such as submitting a form, clicking a link, or visiting a web page. A completion action can be used to increase or decrease a prospect's score by a specific amount, or to reset a prospect's score to zero. For example, a completion action can be created to decrease a prospect's score by 5 points when the prospect unsubscribes from an email.
References: Salesforce documentation

Explanation
The statement that accurately describes how to create a new field for a Marketing Cloud Account Engagement form is that the field is created as a custom prospect field in the form editor. A custom prospect field is a type of field that allows marketers to collect and store information about prospects that is not available in the default fields. A custom prospect field can be created in the form editor, which is a tool that allows marketers to design and customize forms. The field is not created and added to the form in Engagement Studio, as a custom prospect field on the Prospect Fields page, or as a default account field in the form editor, as these are either different tools, different types of fields, or different places to create fields. References: : Create a Custom Prospect Field