What are two benefits of using an IPsec GRE tunnel? (Choose two.)
A.
It supports the use of dynamic crypto maps to reduce configuration complexity.
B.
It allows dynamic routing protocol to run over the tunnel interface.
C.
It allows IP multicast traffic.
D.
It requires a more restrictive crypto ACL to provide finer security control.
E.
It has less overhead than running IPsec in tunnel mode.