Routers R1, R2, R3, and R4 are all connected on the same OSPF network segment. While
viewing the output of the show ospf neighbor command on R1, you notice that the interface
towards R2 is always in the 2Way state.
What would cause this state?

A.
R1 is a DR device and R2 is a DROther device.

B.
R1 and R2 are both DROther devices.

C.
R1 and R2 are both BDR devices.

D.
R1 is a DROther device and R2 is a DR device.

Explanation: