Explanation
Drip programs are automated email campaigns that send a series of messages to prospects based on predefined criteria and triggers. If a prospect is removed from a drip program, they will stop receiving any emails from that program. However, if they are added back to the same drip program, they will resume the drip where they left off, unless the drip program has been reset or modified. References: [Drip Programs],
[Add Prospects to Drip Programs]

When an automation rule is deleted, it means that the rule is no longer active and will not run on any prospects. Therefore, prospects will no longer be able to match the rule (A). The rule will also be sent to the recycle bin in paused mode, where it can be restored or permanently deleted (B). However, deleting an automation rule does not undo the actions that have already been applied to the prospects who matched the rule before . Nor does it delete any prospects who matched the rule (D). Reference: Using Account Engagement Automation Rules vs. Salesforce Flows

Explanation
Emails are electronic messages that you can send to prospects and customers to communicate with them and engage them with your marketing content. You can create and send emails using Marketing Cloud Account Engagement. However, some emails may get stuck in spam, which means that they are filtered out by the recipient's email provider or client and marked as unsolicited or unwanted messages. To avoid this, you can create a text version of the email, which is a plain text alternative to the HTML version of the email. A text version of the email helps with email deliverability and accessibility, as some email clients or devices may not support HTML or images. Creating clear calls-to-action, mobile-friendly versions, or domain keys and SPF may also help with email deliverability, but they are not as essential as creating a text version of the email.
Removing the unsubscribe link from the email is not a good practice, as it may violate the email regulations and preferences of the recipients. References: Emails, [Create a Text Version of an Email]

Explanation
An A/B test list send email is a type of email send that allows marketers to test different versions of an email and measure their performance based on metrics such as opens, clicks, and conversions. The winning version is the one that has the highest percentage of the selected metric. If the winning version shows the percentage by which it out-performed the other version as 0%, it means that both versions had the same performance on the selected metric, and the A/B test was a tie2. References: 2: A/B Testing Your Email Sends

Explanation
If a form is added to a landing page, the submissions will be reported on the form. A form is a web element that allows you to collect information from your prospects, such as their name, email, or company. A landing page is a web page that you create and host in Marketing Cloud Account Engagement to showcase your products or services, offer content, or register for events. You can add a form to a landing page to capture leads or convert visitors into prospects. When a prospect submits a form on a landing page, the submission data will be recorded on the form report, which shows you the number of views, submissions, errors, and conversion rate of your form