Correct option is A
Most modern projectors use either HDMI (High-Definition Multimedia Interface) or VGA (Video Graphics Array) cables as input sources from computers. HDMI is more commonly used now because it carries both high-quality video and audio signals over a single cable.
Important Key Points:
- HDMI supports digital video and audio in a single connection, making setup simpler and cleaner.
- VGA is an older analog standard that only transmits video.
- HDMI has largely replaced VGA in newer projectors, laptops, and desktops.
Knowledge Booster:
- Ethernet cables are used for network connections, not video display.
- PS/2 cables were once used for connecting keyboards and mice—not video output.
- Audio cables carry sound only, not visual signals, and cannot be used for video projection.