What IP address format would be used to add the class C network 192.168.1.0 in a single entry?

An engineer is adding client entries with the controller addresses to ACS. What IP address format
would be used to add the class C network 192.168.1.0 in a single entry?

A.
192.168.1.0/24

B.
192.168.1.0 255.255.255.0