下列配置默认路由的命令中，正确的是
A: [Huawei]ip route static 0.0.0.0 0.0.0.0 192.168.1.1
B: [Huawei]ip route static 0.0.0.0 255.255.255.255 192.168.1.1
C: [Huawei Serial0]ip route static 0.0.0.0 0.0.0.0 0.0.0.0
D: [Huawei]ip route static 0.0.0.0 0.0.0.0 0.0.0.0