How should they manage unsubscribes by communication type?

A small company, with limited resources, has started to use Marketing Cloud. They have a single master data extension for all of their subscribers. When a subscriber opts-in to receive communications, they will receive a monthly newsletter, weekly promotions, and a birthday email.

How should they manage unsubscribes by communication type?
A . Create suppression lists for each communication type, and associate the suppression list on the send definition.
B. Create separate data extensions for each communication type and customize the subscription page.
C. Create a Boolean field for each communication type in the data extension and update the Profile Center.
D. Create publication lists for each communication type, and associate the publication list on the send definition.

Answer: D