Explanation
Lead qualification is the process of identifying and organizing potential customers best-suited for your products or services and who will most likely make a purchase. Lead qualification involves two main steps:
determining when a prospect is ready for follow up from your sales team and determining when a prospect is ready for follow up from your marketing team. The first step is to assess the prospect's level of interest, need, budget, and authority to buy your product or service. This can be done using various lead qualification frameworks and criteria, such as BANT, CHAMP, or MEDDIC. The second step is to nurture the prospect with relevant and personalized content until they are ready to buy. This can be done using various lead nurturing strategies and tools, such as email marketing, content marketing, or marketing automation

Explanation
The way that a marketer can avoid emailing prospects more than once in a ten day span is to use a dynamic list to create a frequency suppression list. A dynamic list is a type of list that automatically updates based on specific criteria, such as field values, activities, or scores. A frequency suppression list is a type of list that excludes prospects who have been emailed within a certain time frame, such as ten days. By using a dynamic list with a frequency suppression criteria, a marketer can ensure that they do not email prospects who have already received an email recently. Using an automation rule, a global account setting, or a segmentation rule are not ways that a marketer can avoid emailing prospects more than once in a ten day span, as they either do not create lists, do not update automatically, or do not run continuously2. References: 2: Dynamic Lists

Explanation
According to the Salesforce documentation, the information that the tooltip above each step on the engagement studio program report provides is high-level metrics only for prospects who have completed the step. An engagement studio program report is a report that shows the performance and results of an engagement program, such as the number of prospects, emails, and conversions. The tooltip above each step on the program report shows the number and percentage of prospects who have completed that step, as well as the number and percentage of prospects who have taken the positive, negative, or neutral path after that step.
The tooltip does not show the metrics for prospects who are waiting to complete, who have left, or who have skipped each step, as these are shown in other sections of the report. References: Salesforce documentation

If LenoxSoft wants to provide a list of their products on their "Contact Us" form and ask prospects to select only one product they are most interested in, they should leverage the dropdown field type. A dropdown field is a single-select field that allows the prospect to choose one option from a predefined list. A dropdown field can be used to capture information such as product interest, industry, or country. A dropdown field can also be used as a controlling field for dependent fields5. Reference: Marketing Cloud Account Engagement Form Field Types

To troubleshoot why a prospect did not receive an email from a drip program, an Administrator should check the following tabs in Marketing Cloud Account Engagement:
The Audits tab to see if the prospect was on the correct lists when the email was sent. This tab shows the list membership changes and email sends for the prospect.
The Overview tab to determine whether the prospect is unmailable. This tab shows the prospect's email status, which could be opt-out, hard bounce, or do not email.
The Lists tab to determine whether the prospect is on the recipient list or any suppression lists. This tab shows the lists that the prospect belongs to, including any lists that are used to exclude prospects from receiving emails. Reference: Marketing Cloud Account Engagement Audits Tab, Marketing Cloud Account Engagement Email Statuses, Marketing Cloud Account Engagement Lists