What is Setup Assistant?

A Marketing Cloud admin to create custom roles for their business process.
What should be taken into consideration to accomplish this?

Which three options determine when a contact could enter a journey?
Choose 3 answers.

Northern Trail Outfitters (NTO) wants to implement a drip campaign to its highest -value outdoor sports customers. NTO is including a deep product discount and wants to limit the audience to not only its best customers, but also those customers most likely to respond.
Which three criteria should the customer use to create an audience for this campaign?
Choose 3 answers

Which two data structures could be configured to appear in the out-of-the-box Subscription center? Choose 2 answers