Refer to the exhibit. Which route must be configured on R1 so that OSPF routing is used when OSPF is up, but the server is still reachable when OSPF goes down?
A. ip route 10.1.1.10 255.255.255.255 gi0/0 125
B. ip route 10.1.1.0 255.255.255.0 172.16.2.2 100
C. ip route 10.1.1.0 255.255.255.0 gi0/1 125
D. ip route 10.1.1.10 255.255.255.255 172.16.2.2 100