Which two features can be inserted into the code using a system-defined code snippet when creating a custom HTML Paste Email within Content Builder? (Choose two.)

When the number of subscribers exceeds one million records, which data model is preferred?

The marketing manager of Northern Trail Outfitters is interested in A/B testing emails in order to increase subscriber engagement.
Which two practices should the marketing manager employ? (Choose two.)

Northern Trail Outfitters (NTO) wants to leverage Content Builder templates to streamline the email creation process. For its monthly email newsletter, NTO includes content specific to the company's loyalty and non- loyalty members.
How should NTO build the email?

A marketer plans to send a transactional email.
Which three criteria should be met to ensure compliance with the CAN-SPAM Act? (Choose three.)