单选题 在一台Cisco路由器上封禁ICMP协议，只允许215.192.40.16/28和202.204.28.2/24子网的ICMP数据包通过路由器，下列正确的access-list配置是______。
A．Router rconfig)#access-list 98 permit icmp 215.192.40.16 0.0.0.15 any
Router(config)#access-list 98 permit icmp 202.204.28.0 0.0.0.255 any
Router(config)#access-list 98 deny icmp any any
Router(config)#access-list 98 permit ip any any
Router(config)#
B．Router(config)#access-list 198 permit icmp 215.192.40.16 0.0.0.15 any
Router(config)#access-list 198 permit icmp 202.204.28.0 0.0.0.255 any
Router(config)#access-list 198 permit ip any any
Router(config)#access-list 198 deny icmp any any
Router(config)#
C．Router(config)#access-list 198 permit icmp 215.192.40.16 0.0.0.15 any
Router(config)#access-list 198 permit icmp 202.204.28.0 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)#
D．Router(config)#access-list 100 permit icmp 215.192.40.16 255.255.255.240 any
Router(config)#access-list 100 permit icmp 202.204.28.0 255.255.255.0 any
Router(config)#access-list 100 deny icmp any any
Router(config)#access-list 100 permit ip any any
Router(config)#