Which two statements are true about OSPFv3? (Choose two.)

A.
OSPFv3 uses a 32-bit router ID to uniquely identify a node in the network.

B.
OSPFv3 uses a 128-bit router ID to uniquely identify a node in the network.

C.
OSPFv3 routes are always preferred over OSPFv2 routes for all traffic.

D.
OSPFv3 and OSPFv2 can be configured at the same time.

Explanation: