What causes a sync from Salesforce to Pardot?

LenoxSoft's email template designer has been tasked with driving more engagement with the company's email content. They want to use the Click-Through Rate report to see which links prospects clicked.
What insight does this report provide the template designer?

What list email or email template report deliverability metric could indicate an unverified sending domain?

A marketing manager sent an email template last week to their "Hot Prospects" list, which is populated dynamically based on the prospects' scores. They want to send the same email template again this week to the same list, but make sure that the prospects that received it last week do not get it again.
How should they accomplish this?

A marketer wants to create different Pardot lists to correspond with the different stages of the buying cycle. When an Opportunity stage changes in Salesforce. the prospect list membership automatically updates to reflect that m Pardot. example, if an opportunity moves from Negotiations to Closed Won, the prospects associated with that opportunity. Should be removed from the Negotiations list, and added to the Closed won list.
How could the marketer accomplish this?