Which description of BGP authentication is true?

A.
MD5 has been used by BGP to encrypt BGP update packets.

B.
BGP uses a message-digest algorithm to authenticate BGP peers

C.
A plain-text password authentication is an option of BGP authentication

D.
EBGP peers authentication is faster than IBGP peers authentication

E.
BGP uses public key and private key to authenticate BGP peers.