Refer to the exhibit. Router1 is running RIPv1. What command was entered into Router1 to configure the gateway of last resort?

Refer to the exhibit. Router1 is running RIPv1. What command was entered into Router1 to configure the gateway of last resort?

no auto-summary
ip default-network 0.0.0.0
ip default-gateway 10.0.0.0
ip route 0.0.0.0 0.0.0.0 S0/0/1