What are the two reasons why the recommended account configuration is one corporate Parent account, with each brand configured as a separate child Business Unit?

A large retail group consists of a corporate team and several divisions operating under different brand names. All plan to share one Marketing Cloud account. Each brand has its own marketing department and operates independently, with its own creative assets, subscribers, and data structure.

What are the two reasons why the recommended account configuration is one corporate Parent account, with each brand configured as a separate child Business Unit? Choose 2 answers
A . Email sends can be separated into Tracking folders for each brand.
B . User roles can be customized to allow or deny specific permissions.
C . Subscribers can be maintained at the Business Unit level.
D . Brands can set their own physical address and SA

Answer: C,D