A.[Router]rip summar-address 10.1.0.022 B.[Router-rip-1]rip summar-address 10.1.0.0 C.[Router-rip-1]rip summar-address 10.1.0.022 D.[Router-Serial1/0]rip summar-address 10.1.0.0 22
A.[Router-rip-1]undo summary B.[Router-rip-1]undo auto-summary C.[Router-Serial1/0]undo summary D.[Router-Serial1/0]undo auto-summary
A.172.16.0.0/22 B.172.16.0.0/23 C.172.16.0.0/24 D.172.16.0.0/25