What is a suppression list in the marketing cloud and when would it be used? (Choose all that apply)

Northern Trail Outfitters wants to create a dynamic welcome series to make each email more relevant to its subscribers. The second email in the series should send customers down a predetermined path based on click activity within the first email. Which Journey Builder activity should be used?

Northern Trail Outfitters (NTO) is implementing Marketing Cloud and is unsure whether to use lists or data extensions. Their consultant recommended they use data extensions.
Which three considerations did the consultant take into account when recommending a data extension-based model over lists? (Choose three.)

Select three (3) best practices for interacting with potential and active subscribers?

A marketer creates a new sendable data extension, and defines the Customer_ID field as the field in the Send Relationship that relates to Subscribers on Subscriber Key. What will the send status in All Subscribers be associated with?