Which three statements describe the differences between RIP version 1 and RIP version 2? (Choose three.)（）

A.RIP version 1 broadcasts updates whereas RIP version 2 uses multicasts.

B.RIP version 1 multicasts updates while RIP version 2 uses broadcasts.

C.Both RIP version 1 and RIP version 2 are classless routing protocols.

D.RIP Version 2 is a classless routing protocol whereas RIP version 1 is a classful routing protocol.

E.Both RIP version 1 and version 2 support authentication.

F.RIP version 2 sends the subnet mask in updates and RIP version 1 does not.