Your company has an Active Directory domain. The company runs Terminal Services. All client computers run Windows Vista Service Pack 1. 
You need to ensure that users are able to run Windows Media Player 11 during a Terminal Services session. 
What should you do？（）

A.On the server， modify the Password Policy settings in the local Group Policy.
B.On the server， modify the Credential Delegation settings in the local Group Policy.
C.On all client computers， modify the Password Policy settings in the local Group Policy.
D.On all client computers， modify the Credential Delegation settings in the local Group Policy.

A.Set the Easy Print driver first option to Disabled. Apply the GPO to the Terminal Server.
B.Set the Use Terminal Services Easy Print driver first option to Disabled. Apply the GPO to all the client computers.
C.Set the Do not set default client printer to be default printer in a session option to Enabled. Apply the GPO to the Terminal Server.
D.Set the Do not set default client printer to be default printer in a session option to Enabled. Apply the GPO to all the client computers.

A.Create a Group Policy object （GPO） that configures the Allow .rdp files from unknown publishers policy setting in the Remote Desktop Client Connection template to Disabled. Apply the GPO to the TSUsers OU.
B.Create a Group Policy object （GPO） that configures the Allow .rdp files from valid publishers and users default .rdp settings policy setting in the Remote Desktop Client Connection template to Disabled. Apply the GPO to the TSUsers OU.
C.Create a Group Policy object （GPO） that configures the Allow .rdp files from valid publishers and users default .rdp settings policy setting in the Remote Desktop Client Connection template to Enabled. Apply the GPO to the TSAdmins OU.
D.Create a Group Policy object （GPO） that configures the Specify SHA1 thumbprints of certificates representing trusted .rdp publishers policy setting in the Remote Desktop Client Connection template to Enabled. Apply the GPO to the TSAdmins OU.