what does the grace period control?

Within the password configuration settings what does the grace period control?

A.
The number of days after an account is locked when the user can request an online reset of his
password

B.
The number of days a notice is sent to the user before his password expires

C.
The number of days after a password expires that the user can still log in before the account is
locked

D.
The number of days before a manager is noticed of a locked account

Explanation:

Grace period after expiration before account is locked.