In the Cisco SDM Security Audit Wizard screen shown in the figure, which Fix it action should be selected to prevent IP spoofing attack?

A.
IP Proxy ARP is enabled

B.
Unicast RPF is not enabled in all the outside interfaces

C.
IP Mask Reply is enabled

D.
IP Directed Broadcast is enabled

E.
IP Unreachables is enabled

F.
IP Redirects is enabled