A.Router(config)#access-list 198 deny icmp any any Router(config)#access-list 198 permit icmp 169.15.128.0 0.0.0.255 any Router(config)#access-list 198 permit icmp 119.75.108.0 0.0.0.255 any Router(config)#access-list 198 permit ip any any Router(config)#interface g0/1 Router(config-if)#ip access-group 198 in Router(config-if)#ip access-group 198 out Router(config-if)# B.Router(config)#access-list 198 permit icmp 169.15.128.0 0.0.0.255 any Router(config)#access-list 198 permit icmp 1 19.75.108.0 0.0.0.255 any Router(config)#access-list 198 deny icmp any any Router(config)#access-list 198 permit ip any any Router(config)#interface g0/1 Router(config-if)#ip access-group 198 in Router(config-if)#ip access-group 198 out Router(config-if)# C.Router(config)#access-list 98 permit icmp 169.15.128.0 0.0.0.255 any Router(config)#access-list 98 permit icmp 119.75.108.0 0.0.0.255 any Router(conflg)#access-list 98 deny icmp any any Router(config)#access-list 98 permit ip any any Router(config)#interface g0/1 Router(config-if)#ip access-group 98 in Router(config-if)#ip access-group 98 out Router(config-if)# D.Router(config)#access-list 100 permit icmp 169.15.128.0 0.0.0.255 any Router(conflg)#access-list 100 permit icmp 119.75.108.0 0.0.0.255 any Router(config)#access-list 100 permit ip any any Router(config)#access-list 100 deny icmp any any Router(config)#interface g0/1 Router(coniig-if)#ip access-group 100 in Router(config-if)#ip access-group 100 out Router(config-if)#