What are the features of Cisco IOS that can help mitigate Blaster worm attack on RPC ports?

What are the features of Cisco IOS that can help mitigate Blaster worm attack on RPC
ports? (Choose two)

A.
DCAR

B.
dynamic ARP inspection

C.
FPM

D.
IP Source Guard

E.
NABAR

F.
URPF