单项选择题

将接口eth0的ip 地址设置为172.19.18.15,子网掩码255.255.255.0,如下哪个命令可以达成?()

A.ifconfig eth0172.19.18.15netmask 255.255.255.0
B.ipconfig eth0172.19.18.15/255.255.255.0
C.ifconfig eth0172.19.18.15/24
D.ipconfig eth0172.19.18.15255.255.255.0