You are asked to deploy a GRE tunnel between two remote sites.
Which two statements are correct? (Choose two.)

A.
The tunnel endpoints must have tunnel interfaces to encapsulate the transported packets.

B.
The tunnel endpoints must have tunnel interfaces to encrypt the transported packets.

C.
All intermediate routers between the tunnel endpoints must have GRE transport support
enabled.

D.
All intermediate routers between the tunnel endpoints must have a route to the tunnel
endpoints.