An Administrator wants to make a list of all prospects who complete the Contact Us form but only wants them to be added the first time they complete the form. If a prospect is ever removed from the list, they shouldn’t be able to get added back to it.

What is a recommended way to create this type of list?

A. Use a completion action on the form to automatically add anyone who completes it to the list.

B. Use a dynamic list that matches prospects as they complete the form.

C. Use an automation rule where prospects who complete the form will match the rule once and be added to the list.
D. Use table actions to add prospects who have completed the form to the list.