Which of the following MMC snap-in consoles is used to administer and publish information in the directory and to manage users, groups, computers, domains, domain controllers, and organizational units?

You work as a Server Administrator for company Inc. The company has a Windows Active Directory-based single domain single forest network. The functional level of the forest is Windows Server 2008 R2. Which of the following MMC snap-in consoles is used to administer and publish information in the directory and to manage users, groups, computers, domains, domain controllers, and organizational units?
A. Active Directory Administrative Center
B. Active Directory Users and Computers
C. Active Directory Sites and Services
D. Active Directory Domains and Trusts