Which of the following is NOT a potential hazard to your head? A. Dust B. Electrical shock C. Falling objects D. Low hanging beams

The option which is not a potential hazard to your head is A. dust. Dust is pretty harmless, so I don't see how it can hurt your head, unless you are allergic to it, and inhale it, and then it can hurt your whole body, not just your head. Electrical shock, falling objects, and low hanging beams can provide pain to your head if you hit these objects or get shocked by electrics.