Explanation
When an engagement studio action step is scheduled to send an email on a specific date, it means that the email will be sent to all prospects who reach that step on or after that date. Therefore, a prospect arriving after the send date will be sent the email (D). The prospect will not remain on the step until a new send date is set (A), skip the Send Email step (B), or be removed from the program. References: Work with Time and Pauses in Engagement Studio

Explanation
The correct sequence of events is E C B A D. Visitors access your company website (E), a cookie is applied, a visitor submits a conversion form (B), the visitor is now a prospect (A), and the prospect's activity history is available to view in Marketing Cloud Account Engagement (D)4. This is how Marketing Cloud Account Engagement tracks and captures visitor and prospect data and behavior

Explanation
The automation tool that should be used to increase a prospect's score an additional five points every time a specific form is completed is completion action. A completion action is an automated task that is triggered by a certain element in Marketing Cloud Account Engagement, such as a form, a form handler, a custom redirect, a page action, or a file download17. A completion action can perform various actions, such as adjusting score, adding to list, assigning to user, sending autoresponder email, and so on18. A completion action can be added to a form in the fourth step of the form builder tool, and it can be customized to execute only on prospects who meet specific criteria19. A completion action is not retroactive and will only apply to prospects who complete the chosen action moving forward

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 scenario that would convert an anonymous visitor into an identified prospect is submitting a Web2Lead form that is linked to Account Engagement via a form handler. This is because a form handler captures the visitor's information and passes it to Account Engagement, where a new prospect record is created. Creating a Lead in Salesforce which syncs to Account Engagement as a new prospect record (A) will not convert an anonymous visitor, as it does not involve any interaction with the visitor. Scanning the badge of someone who visited a booth at a recent event (B) will not convert an anonymous visitor, as it does not involve any online activity that can be tracked by Account Engagement. Opening an email sent by a sales rep using the Send Account Engagement Email functionality in Salesforce (D) will not convert an anonymous visitor, as it requires the visitor to already have a prospect record in Account Engagement. References: Anonymous Visitors