Which option describes the purpose of the Generic Desktop Provider?

Which option describes the purpose of the Generic Desktop Provider?

A.
It connects to a pool of virtual machines with a RDP service.

B.
It connects to any virtual or any physical machine with a RDP service.

C.
It connects to any physical machine regardless of operating system.

D.
It connects to any virtual or any physical machine with a VNC service.

Explanation:
http://docs.oracle.com/html/E26214_02/generic-desktop-provider.html (Second para)