The correct answer is pointing input.?Pointing deviceA pointing device is an input interface that allows a user to input spatial data to a computer. Common pointing devicesMouseTrackballJoystickPointing stickWii RemoteFinger trackingGraphics tabletStylusFinger trackingAdditional InformationTrack Ball:-The trackball is a pointing device consisting of a ball housed in a socket containing sensors to detect rotation of the ball about two axis, similar to an upside-down mouse.As the user rolls the ball with a thumb, fingers, or palm the pointer on the screen will also move.Tracker balls are commonly used on CAD workstations?.Mouse:-The most common pointing input device is mouse which enables the user to point the cursor and click where the user wants to use it.Touchpad:-A touchpad is also called a trackpad, is a type of input device for computers that does the same things like a computer mouse.It is made up of a flat, touch-sensitive surface that the user slides one or more fingers on to move the cursor on the screen.