Which statement about user$-$initiated events utilized in GUI programming is accurate?

Group of answer choices

a$.$Moving the mouse pointer around on the screen initiates a mouse drag event.

b$.$ On a touchscreen, the swiping event should result in zooming in or out $($making GUI images appear larger or smaller$).$

c$.$ A mouse$-$over event occurs when the left or right mouse button is pressed.

d$.$ Most languages allow you to initiate one event when a mouse key is pressed and another when it is released.