Refer to the exhibit. Which command must be issued to enable a floating static default route on router A?

A. ip route 0.0.0.0 0.0.0.0 192.168.1.2 10
B. ip route 0.0.0.0 0.0.0.0 192.168.1.2
C. ip default-gateway 192.168.2.1
D. ip route 0.0.0.0 0.0.0.0 192.168.2.1 10