Your company has an Active Directory directory service domain. All client computers run Windows XP Professional. You are upgrading your servers from Windows 2000 Server to Windows Server 2003. You need to ensure that all network traffic between all computers uses server message block (SMB) signing, while maintaining client computer connectivity.

Which two Security Options policy settings should you enable? (Each correct answer presents part of the solution. Choose two.)

A.
Digitally sign communications (always) for the client computers

B.
Digitally sign communications (if server agrees) for the client computers

C.
Digitally sign communications (always) for the servers

D.
Digitally sign communications (if client agrees) for the servers