What are some of the best practices to drive engagement with email marketing? (Choose 3)

Northern Trail Outfitters (NTO) launched a new custom Preference Center to allow customers to provide details around their personal information such as age, gender, and outdoor sporting interests.
In which two ways should NTO honor customers' preferences when creating emails? (Choose two.)

What is the number one trend being seen in the email marketing space? (Choose 2)

A subscriber unsubscribes upon receiving an email from Northern Trail Outfitters (NTO). At the bottom of the NTO email, the subscriber sees three links: Manage Subscriptions, Profile Center, and One-Click Unsubscribe.
The subscriber clicks One-Click Unsubscribe.
Given that NTO Is using the default subscription center, which two options are given when the subscriber clicks One-Click Unsubscribe?
Choose 2 answers

Northern Trail Outfitters' wants to use a partner to develop dynamic emails. After submittal, the marketing team wants to make sure the emails are reviewed before approval.
What feature should they employ?