Both Chlorine and Bromine Can Be Produced in the Laboratory

Both chlorine and bromine can be produced in the laboratory by reacting the halides with manganese(IV) oxide.If the following equation is balanced in an acidic solution,then the MnO₂ is acting as a(n) ________ and the coefficient in front of H⁺ is ________. ________ MnO₂(s) + ________ Cl^-(aq) + ________ H⁺(aq) → ________ Mn²⁺(aq) + ________ Cl₂(g) + ________ H₂O(l)

A) oxidizing agent,2
B) oxidizing agent,3
C) oxidizing agent,4
D) reducing agent,3