Some touch screens recognize when you touch the screen with two fingers or two hands. if you are looking for a device on which you can do this, what type of touch screen should you search for?
(a) twin-touch
(b) dual-touch
(c) phase-touch
(d) multi-touch

Multi-touch

Explanation:

Multi touch is the technology developed by Apple enabling the touch screen to sense multiple fingers.This is called Multi Touch Technology introduced in the year 2007.This is essentially a Multi Point of Contact with the Surface.In the present day, many devices (mobile devices,touch walls and tablets) have this technology (or feature) enabled in their device.So, option (d) Multi-touch is the correct option.There are no touch screen technologies with the name Twin-touch, Dual-touch, Phase-touch.So, options (a),(b),(c) are wrong options.