Your network contains an Active Directory domain. The domain contains 1000 user accounts.  You have a list that contains the mobile phone number of each user  You need to add the mobile number of each user to Active Directory.     What should you do（）

• A、Create a file that contains the mobile phone numbers， and then run ldifde.exe
• B、Create a fila that contains the mobile phone numbers， and then run csvde.exe
• C、From Adsiedit， select the CN=Users container， and then mofify the properties of the container.
• D、From Active Directory Users and Computers， select all of the users， and then modify the properties of the users.