客户某台主机上互联网的同时要能上内网，互联网网卡地址为192.168.1.1/24网关192.168.1.1内网网卡地址为172.16.1.0/24网关172.16.1.1客户想要通过此主机访问IP为172.16.17.17的网站服务器，下列主机路由添加正确的是？（）

• A、route-aadd172.16.17.0netmask255.255.255.0172.16.1.1
• B、route-padd172.16.17.17mask255.255.255.255172.16.1.1
• C、route-padd172.16.17.17mask255.255.255.255nexthop172.16.1.1
• D、route-aadd172.16.17.17255.255.255.255172.16.1.1