You are designing a strategy for migrating the UNIX user accounts to Active Directory.  Which three actions should you perform？（）

• A、 Import the user accounts as inetOrgPerson objects.
• B、 Import the user accounts into Active Directory by using the Ldifde command-line tool.
• C、 Export all user accounts from the UNIX servers to a text file.
• D、 Export all user accounts and their passwords from the UNIX servers to a text file. Encrypt this file to achieve extra security.
• E、 Assign random passwords to each user object， and securely distribute the password to the users.
• F、 Create the same strong password for each user object， and require users to change their passwords at first logon.
• G、 Instruct users to use the same name and password as they used on the UNIX servers.