Https://chem.libretexts.org/Core/Physical_and_Theoretical_Chemistry/Acids_and_Bases/Monoprotic_Versu.... <span>Therefore, a monoprotic acid is an acid that can donate only one proton, while polyprotic acid can donate more than one proton. Similarly, a monoprotic base can only accept one proton, while a polyprotic base can accept more than one proton.</span>
(C) both are correct because if you are working in a Physical or health hazard area or if you are already working and you are going to be introduced to a hazardous situation you must be trained according to OSHA law.