Your network contains a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). An administrator named Admin1 logs on to Server1. Admin1 sends you a Remote Assistance invitation. You successfully establish a Remote Assistance session to Server1 by using the invitation. You request control of Server1 and you receive the following error message. You need to ensure that you can control Server1 by using Remote Assistance. What should you instruct Admin1 to do?（）
- A Add your user account to the HelpServicesGroup group.
- B Add your user account to the Remote Desktop Users group.
- C Send a Remote Assistance request by using Windows Messenger.
- D Open the System properties, and then modify the Remote settings.