Northern trail outfitters would like to send shipping email notifications to members, shipping fulfillment data is included in a file which is moved at frequent intervals to folder on NTO's Enhanced FTP Account.
Which Solution can be used to achieve this?

An account has Subscriber Key enabled, and will be providing a unique key for each subscriber from an external system. A marketer wants to create a data extension for sending email campaigns.
Which two steps should the marketer take when creating the data extension? (Choose two.)

When building content for an email, what would a marketer consider in the Call to Action? (Choose 2)

Identify the best practices for interacting with potential and active subscribers. (Choose 3)

Northern Trail Outfitters sends order confirmations to customers who have made online purchases. Delivery of these emails must follow the "Transactional" CAN-SPAM requirements.
What feature should the marketer use?