Which of the following methods allow a Windows administrator to limit the damage another user can do if the other user happens upon an unattended workstation where the administrator is signed and performing functions requiring administrative privileges?

The administrator signs in with a standard user account assigned to another user until elevated privileges are required to perform a function. The administrator signs out as the standard user and signs in with an administrator account to perform the function and then returns to the standard user account.

The administrator performs all functions while signed in with a power user account.

The administrator uses single sign$-$on to access all necessary resources to perform required functions.

The administrator uses a smart card to authenticate while signing in$.$

The administrator signs in with a standard user account assigned to the administrator until elevated privileges are required to perform a function. The administrator signs out as the standard user and signs in with an administrator account to perform the function and then returns to the standard user account.