Which list email report metric represents the total number of emails minus hard and soft bounces?

Which Pardot asset would an Administrator create in order to collect the information form prospects who are interested in being for an upcoming product launch?

What do spam complaints refer to in an email report?

If the information in Salesforce differs from the information in Pardot, by default what information will be kept?

An engagement program is using a dynamic list. A prospect was matching the rules of the list and completed Steps 1 through 3 of the engagement program. The prospect then was removed from the dynamic list because they no longer matched the rules.
If the prospect is added back to the dynamic list, what can an Administrator expect to happen?