Answer:
Option (B) i.e., Sensor is the correct answer.
Explanation:
The following option is true because the sensor is both types of device that is input as well as output that gather information or data from the environment directly.
Option A i.e., Audio input is incorrect because the audio input that device which records the voice, music or audio in the form of data.
Option C i.e., Trackball is incorrect because trackball record the movement of the ball in which direction we move that ball, in that direction the cursor is moving.
Option D i.e., Touch Screen is incorrect because it is the device that works by the touch of the human being such as touchpad, mobile phones, etc.
