公司要求修改“eth0网卡”的IP地址172.16.22.8和子网掩码255.255.255.128的命令：（）

A.ifconfigeth0172.16.22.8netmask255.255.255.128
B.ifconfig172.18.48.56netmask255.255.255.128
C.ifdowneth0172.16.22.8netmask255.255.255.128
D.ifconfigup172.18.48.56netmask255.255.255.128