What would determine the action group used?

In Share the Document Library defines a number of “action groups” which determine the actions shown to the user.

What would determine the action group used? (Choose two.)
A . The type of node.
B . The aspects applied to the node.
C . The mime type of the node.
D . The status of the document.
E . The current user.
F . The view currently in use.

Answer: AF