Refer to the exhibit. R1 learns all routes via OSPF. Which command configures a backup static route on R1 to reach the 192.168.20 0/24 network via R3?
A. R1(config)#ip route 192.168.20.0 255.255.255.0 192.168.30.2 111
B. R1(config)#ip route 192.168.20.0 255.255.255.0 192.168.30.2 90
C. R1(config)#ip route 192.168.20.0 255.255.0.0 192.168.30.2
D. R1(config)#ip route 192.168.20.0 255.255.255.0 192.168.30.2