Which is true of effective passwords?

O

O

They mix letters, numbers, and symbols.

They are easy for others to guess.

They are difficult to remember.

They contain some personal information,

O

B: is certainly not correct. The very opposite is true. Passwords are meant to keep others out.

C:If they are difficult to remember, you will always be changing them. Not the answer.

D: a password should never contain personal information, particularly if it is known.

The answer is A.