Which file on the DHCP server needs to be updated?

While testing a new DHCP server, you discover that clients on the 192.168.120.0 network are
being assigned an incorrect subnet mask. Which file on the DHCP server needs to be updated?

A.
/var/dhcp/SUNWfiles1_dhcptab

B.
/var/dhcp/SUNWfiles1_192_168_120_0

C.
/etc/netmasks

D.
/var/dhcp/Locale

E.
/etc/inet/dhcpsvc.conf