Which problems could cause an Expand line to be started but not ready with FSE 248? Select
TWO.

A.
The associated communication controller is not operational.

B.
The EXPAND line handler on the neighbor system is not started.

C.
The NEXTSYS modifier is incorrect on either the local or neighbor system.

D.
Modem has failed between the local and neighbor systems.

E.
The associated process is not operational (Example: TCP/IP process).