What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block?

The network administrator needs to address seven LANs. RIP version 1 is the only routing protocol in
use on the network and subnet 0 is not being used. What is the maximum number of usable IP
addresses that can be supported on each LAN if the organization is using one class C address block?

A.
8

B.
6

C.
30

D.
32

E.
14

F.
16