what is the electric charge of a proton? +1 -1 0 +2

what is the electric charge of a proton? +1 -1 0 +2
Answer
Brief Explanations:
Protons are positively - charged subatomic particles. Their electric charge is equal in magnitude but opposite in sign to that of an electron. The elementary charge unit is used to describe their charge, and a proton has a charge of + 1 elementary charge unit.
Answer:
+1