What is the effect of using the service password-encryption command?

What is the effect of using the service password-encryption command?
A . only passwords configured after the command has been entered will be encrypted.
B . Only the enable password will be encrypted.
C . Only the enable secret password will be encrypted
D . It will encrypt the secret password and remove the enable secret password from the configuration.
E . It will encrypt all current and future passwords.

Answer: E