What are two enhancements that OSPFv3 supports over OSPFV2? (Choose two)

What are two enhancements that OSPFv3 supports over OSPFV2? (Choose two)
A . It requires the use of AR
C . It can support multiple IPv6 subnets on a single link.
D . It supports up to 2 instances of OSPFv3 over a common link.
E . It routes over links rather than over networks.

Answer: B D