Martha Works as a Systems Administrator in a Multinational Corporation

Multiple Choice

Martha works as a systems administrator in a multinational corporation. One of her colleagues is going on a sabbatical for six months. Martha must ensure that no one uses the colleague's user account until he returns.
Which of the following actions can she take to ensure this?

A) Lock out the account
B) Disable the account
C) Change the account's password
D) Delete the account