What setting does the administrator need to verify to enable 3D?

The administrator has enabled 3D for the View desktops and they are running dual monitors on

the client. Users are able to login and interact with their desktops but the 3D feature is not working.
What setting does the administrator need to verify to enable 3D?

A.
The desktops must have hardware v7.x or later.

B.
The max resolution per monitor cannot exceed 1920×1200.

C.
The pool is configured to enable 3D acceleration.

D.
The VRAM size is not set to 256MB for your desktop.