Which three attribute-value pairs (AVPs) must be present in L2TPv3 ICRQ messages?

Which three attribute-value pairs (AVPs) must be present in L2TPv3 ICRQ messages?
(Choose three.)

A.
PW capabilities list

B.
Message type

C.
Assigned control connection ID

D.
PW type

E.
Remote session ID

F.
Hostname