Below there are group of pictures. Which one of the following group is ODD ONE that?
A 
B 
C 
D 
Option D is only incorrect because the scanner takes the hardcopy into a softcopy but a headphone cannot do this task. A scanner cannot do the task that a headphone does. But in option A, The joystick is a input device that controls the character of a game and that is being processed through the CPU that's why Option D is ODD ONE.