Which statement is correct regarding IKEv2 when implementing IPsec site-to-site VPNs?

Which statement is correct regarding IKEv2 when implementing IPsec site-to-site VPNs?

A.
IKEv2 should be configured with a higher priority over IKEv1 policies within the same tunnel
group.

B.
IKEv2 crypto maps can be configured to inherit IKEv1 parameters, if configured.

C.
IKE v1 and IKEv2 can coexist in the same tunnel group, with fallback to IKEv1 if the remote
endpoint does not support IKEv2.

D.
IKEv2 can be configured to support multiple peers.