Your network contains an Active Directory domain. All servers run Windows Server 2008 R2 and aremembers of the domain. All servers are located in the main office. You have a portable computer namedComputer1 that runs Windows 7. Computer1 is joined to the domain and is located in a branch office. A fileserver named Server1 contains a shared folder named Share1. You need to configure Computer1 to meetthe following requirements: Minimize network traffic between the main office and the branch office  Ensure that Computer1 can only access resources in Share1 while it is connected to the network. What should you do?（）

• A、On Computer1， enable offline files.
• B、On Computer1， enable transparent caching.
• C、On Server1， configure DirectAccess.
• D、On Server1， configure Share1 to be available offline.