You are the administrator of a computer named Computer1 that runs Windows 7. Several users shareComputer1. The users plan to encrypt files on the computer. You need to ensure that you can access allencrypted files on the computer.  What should you do first?（）

• A、At a command prompt， run Cipher.exe.
• B、At a command prompt， run Certutil.exe.
• C、From the local computer policy， modify the User Rights Assignment.
• D、From User Accounts， run the Manage your file encryption certificates wizard.