You need to design a domain model that meets company business and security requirements for controlling access to the new Web-based ordering application. What should you do?

A.
Create a child organizational unit (OU) within the existing domain.

B.
Create a child domain of the existing domain.

C.
Create a new domain in a new forest. Configure the new domain to trust the existing domain.

D.
Create a new tree in the existing forest. Configure the new domain to trust the existing domain.