How is the data fetched by an Aggregate bound to a Table or a List widget?

How is the data fetched by an Aggregate bound to a Table or a List widget?
A . By setting the Source property of the widget to the output of the Aggregate.
B. By creating a Screen Action that programmatically assigns the widget to the data fetched by the Aggregate.
C. The binding is done automatically since the Aggregate is in the scope of the Screen.
D. By adding an Expression inside the widget that refers to an attribute of the data fetched by the Aggregate.

Answer: A