How do you connect SAP Extended Warehouse Management to communicate with the programmable logic controllers (PLC)?

Your customer wants to implement the material flow system (MFS) to control conveyors and the automated high rack storage area.

How do you connect SAP Extended Warehouse Management to communicate with the programmable logic controllers (PLC)? Note: There are 2 correct answers to this question.
A . Activate the link to the subsystems using the ALE interface on the warehouse number
B . Send an IDoc through a Post Processing Framework action to the PL
D . Directly integrate to the PLC using ABAP Push Channels.
E . Use an RFC adapter to connect with the TCP/IP socket server of the PLC

Answer: A, D