A Nurse Is Teaching a Nursing Student About Information Security

A nurse is teaching a nursing student about information security and the use of passwords. Which statement by the nurse is correct?

A) "Use a combination of letters, numbers, and special characters."
B) "Avoid changing from upper- to lowercase in your password."
C) "Do not make your password long, and keep it to four characters or less."
D) "Change your password only when you must."