Which two statements are true about OSPFv3?

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

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

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

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

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