To make OSPF area 4 totally stubby, the following command was issued on the ABR in router configuration mode:
area 4 stub.
Which two things need to be done to finish making area 4 a totally stubby area? (Choose two.)
Select 2 response(s).
A.
Apply the area 4 stub command to all routers in the area.
B.
On the ABR, use the area 4 stub command with the no-summary keyword.
C.
On the ABR, specify a default cost for the area with the area default-cost command.
D.
On the ABR, use the default-information originate command to inject a default route into area 4.
E.
Use the auto-cost command on each router in the area to automatically determine the cost to other OSPF areas.