Which of the following changes are required to accomplish this? Each correct answer represents a complete solution

You work as a Network Administrator for NetTech Inc. Your computer has the Windows 2000 Server operating system. You want to harden the security of the server. Which of the following changes are required to accomplish this? Each correct answer represents a complete solution. Choose two.

A.
Enable the Guest account.

B.
Rename the Administrator account.

C.
Remove the Administrator account.

D.
Disable the Guest account.