Which of the Following Statements Concerning Passwords Is True

Multiple Choice

Which of the following statements concerning passwords is true?

A) Strong passwords are not required to be changed periodically.
B) As long as a strong password is devised,it can be as the password to multiple accounts of a single user.
C) A good control system should force the users to change their password periodically.
D) For the sake of convenience and efficiency,users should select simple easy to remember passwords.