What is correct about it?

If you want to access a specific UI component in an app, use the UiSelector class. This class represents a query for specific elements in the currently displayed UI.

What is correct about it? (Choose two.)
A . If more than one matching element is found, the first matching element in the layout hierarchy is returned as the target UiObject.
B . If no matching UI element is found, an IOException is thrown.
C . If more than one matching element is found, the last matching element in the layout hierarchy is returned as the target UiObject.
D . If no matching UI element is found, a UiAutomatorObjectNotFoundException is thrown.

Answer: A,D