What automation tool would effectively achieve this goal?

A form is used to capture prospect data for a yearly conference. The form needs to add prospects to a list after the submit, but it should not retroactively apply actions to prospects that have already filled out the form.

What automation tool would effectively achieve this goal?
A . Use a segmentation rule to add prospects to a list
B . Use a dynamic list to add prospects to a list
C . Use a completion action to add prospects to a list
D . Use an automation rule to add prospects to a list

Answer: C

Explanation:

The automation tool that would effectively achieve the goal of adding prospects to a list after they submit a form, but not retroactively applying actions to prospects that have already filled out the form, is a completion action. Completion actions are actions that are triggered when a prospect completes a specific activity, such as submitting a form, clicking a link, or opening an email. Completion actions are executed in real time and only affect the prospects who complete the activity after the action is set up. Segmentation rules, dynamic lists, and automation rules are not suitable for this goal, as they are either retroactive, recurring, or based on criteria other than a specific activity. Reference Completion Actions Overview