What is the objective of the nat 0 command?

What is the objective of the nat 0 command?

A.
The nat 0 command, followed by a range of IP addresses, specifies the addresses that are to
be translated using network address translation.

B.
The nat 0 command, followed by an access list, specifies the addresses that are to be used in
translations only once.

C.
The nat 0 command, followed by a range of IP addresses, specifies the addresses that are to
be translated when used for IPsec.

D.
The natO command, followed by an access list, specifies the addresses that are not to be
translated.