Northern Trail Outfitters has Marketing Cloud users who need data extension View and Update permissions for campaigns related to B3C sales, out not any permissions for campaigns related to B2B sales.
How should they accomplish this?

What storage model should be used if a subscriber has more than one value for an attribute?

Which activity should be used for multivariate content testing within Journey Builder?

What elements of CAN-SPAM should the Marketing Cloud admin ensure are present for each Commercial send?

Northern Trail Outfitters (NTO) Is building a journey which randomly sends five different versions of an initial welcome email to new subscribers; however, subscribers receive the same follow-up email two weeks later. To improve maintainability of their email content, NTO wants to use five completely different emails, rather than having one email with dynamic content.
Which activity would allow them to build the journey with the fewest activities possible?