Refer to the exhibit. Is there any Level 1 parent route? If so, write down one Level 1 parent route. Branch1#show ip route Codes: L - local, C - connected, S - static, R = RIP, M =-- mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area " - candidate default, U - per-user static route, - ODR P - periodic download static route Gateway of last resort is not set 172.22.0.0/16 is variably subnetted, 9 subnets, 5 masks S 172.22.64.0/22 [1/0] via 172.22.71.1 S 172.22.68.0/23 [1/0] via 172.22.71.1 C 172.22.70.0/25 is directly connected, GigabitEthernet0/0 L 172.22.70.129/32 is directly connected, GigabitEthernet0/1 C 172.22.71.0/30 is directly connected, Serial0/0/0 L 172.22.71.2/32 is directly connected, Serial0/0/0 S 172.22.71.4/30 is directly connected, Serial0/0/0 198.0.0.0/30 is subnetted, 1 subnets S 198.0.0.0/30 is directly connected, Serial0/0/0