Which option gives a correct pair?

Correct answer: Webcam and input hardware

Direct answer: Option A, webcam and input hardware. A webcam is a physical camera connected to or built into a computer. It captures the user’s image or video and sends that visual information into the computer. A device that sends information into a computer is input hardware, so the pair in Option A is correct. Option B is wrong because system software is a program that manages computer operations, whereas a webcam is a physical camera. Option C is wrong because a data file is stored information, such as a photograph or video; the webcam creates or supplies that input but is not itself a file. Option D is wrong because antivirus is security software that detects or blocks harmful programs; a webcam is not antivirus. The distinction is simple: hardware can be touched, while software is a set of instructions. A webcam may produce a video file, but it remains an input device. Exam cue: camera, microphone, keyboard and scanner normally provide input.