RouterA(config)# ip route 10.1.2.0 255.255.255.0 serial0/0

RouterA is configured with a basic configuration. The link between the two routers is operational and no routing protocols are configured on either router. The line shown in the exhibit is then added to router RouterA. Should interface fa0/0 on router RouterB shutdown, what effect will the shutdown have on router RouterA?

A.	A route to 10.1.2.0/24 will remain in the RouterA routing table.
B.	A packet to host 10.1.2.3 will be dropped by router RouterA.
C.	Router RouterA will send an ICMP packet to attempt to verify the route.
D.	Because router RouterB will send a poison reverse packet to router RouterA, RouterA will remove the route.