A router lists the following partial output from the show ip route command. Out which interface will the router route packets destined to IP address 180.5.38.122?

10.0.0.0/8 is variably subnetted, 8 subnets, 5 masks
O 180.5.38.100/32 [110/50] via 172.16.25.2, 00:00:04, GigabitEthernet0/0/0
O 180.5.38.64/26 [110/100] via 172.16.25.129, 00:00:09, GigabitEthernet0/1/0
O 180.5.37.0/23 [110/65] via 172.16.24.2, 00:00:04, GigabitEthernet0/2/0
O 180.5.38.96/27 [110/65] via 172.16.24.129, 00:00:09, GigabitEthernet0/3/0
O 0.0.0.0/0 [110/129] via 172.16.25.129, 00:00:09, GigabitEthernet0/0/0

(A) G0/3/0
(B) G0/2/0
(C) G0/1/0
(D) G0/0/0

G0/3/0 is the correct answer.

Destination address 180.5.38.122 matches all the routes listed except the host route to 180.5.38.100/32. The router will choose the matching route that has the longest prefix length, that is, the prefix-style mask with the highest number. In this case, that route lists subnet 180.5.38.96 and mask /27, which lists interface G0/3/0 as the outgoing interface.