Which is the correct combination of (1 )~(3) to describe the Activity Lifecycle?
A.
(l)Foreground (2)Background (3)Visible
B.
(l)Foreground (2)Visible (3)Background
C.
(1)Visible (2)Background (3)Foreground
D.
(1)Visible (2)Foreground (3)Background
Explanation: