单项选择题
A.iptables -t filter -A FORWARD -s 192.168.10.0/24-p icmp --icmp-type 8-j ACCEPT
B.iptables -t filter -A FORWARD -o 192.168.10.0/24-p icmp --icmp-type 8-j ACCEPT
C.iptables -t filter -O FORWARD -s 192.168.10.0/24-p icmp --icmp-type 8-j ACCEPT
D.iptables -t filter -A FORWARD -s 192.168.10.0/24-p icmp --icmp-type 8-l ACCEPT