What is the optimal way to 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.

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

Answer: C