A.R4（config）# ip default-network 10.0.0.0
B.R4（config）# ip route 0.0.0.0 0.0.0.0 10.1.1.1
C.R4（config）# ip route 10.0.0.0 255.0.0.0 10.1.1.1
D.R4（config-router）# default-information originate

A.The map prohibits the redistribution of all type 2 external OSPF routes with tag 6 set
B.The map prohibits the redistribution of all type 2 external OSPF routes
C.The map redistributes into EIGRP all routes that match the pfx prefix list and the five metric values40000， 1000， 255， 1， and 1500
D.The map prohibits the redistribution of all external OSPF routes with tag 6 set
E.All routes that do no match clauses 10 and 20 of the route map are redistributed with their tags set to 8
F.The map permits the redistribution of all type 1 external OSPF routes