Your company has a single Active Directory directory service domain. Member servers run Windows Server 2003. You need to ensure that server message block (SMB)signing is enabled for incoming SMB sessions.
Which Group Policy setting should you enable?

A.
Microsoft network client. Digitally sign communications (always)

B.
Microsoft network client. Send unencrypted password to connect to third-party SMB servers

C.
Microsoft network server. Digitally sign communications (always)

D.
Domain member. Digitally encrypt or sign secure channel data (always)