which is the best way to temporarily suspend a single u…

Of the ways listed, which is the best way to temporarily suspend a single user’s ability to interactively login?

A.
Add the user name to /etc/nologin.

B.
Change the user’s password.

C.
Change the user name in /etc/passwd.

D.
Use change to expire the user account.

E.
Place the command logout in the user’s profile.