Which statement is true about the difference between OSPFv2 and OSPFv3?
A. OSPFv3 routers use a different metric than OSPFv2 routers use.
B. OSPFv3 routers use a 128 bit router ID instead of a 32 bit ID.
C. OSPFv3 routers do not need to elect a DR on multiaccess segments.
D. OSPFv3 routers do not need to have matching subnets to form neighbor adjacencies