Which statements about an IPv6-over-IPv4 IPsec configuration are correct? (Choose two.)

Which statements about an IPv6-over-IPv4 IPsec configuration are correct? (Choose two.)
A . The remote gateway IP must be an IPv6 address.
B . The source quick mode selector must be an IPv4 address.
C . The local gateway IP must an IPv4 address.
D . The destination quick mode selector must be an IPv6 address.

Answer: B,D