Which of the following can be contained within an Organizational Unit?

• A. Only users
• B. Users and groups
• C. OUs can contain users, groups, computers, and other OUs
• D. Only computers

Answer: (C)

Organizational Units act as flexible containers inside a directory to organize objects and apply policies. They’re not limited to a single type of object; an OU can hold user accounts, groups, computer accounts, and even other OUs to form a hierarchical structure. This versatility is what makes them essential for delegating administration and applying Group Policy to specific parts of the domain. So, the best choice reflects that an OU can contain users, groups, computers, and other OUs. The other options limit what an OU can contain and don’t reflect its ability to host multiple object types or nested containers.