Gaseous Nitrogen Monoxide Reacts with Oxygen Gas to Form Brown

Gaseous nitrogen monoxide reacts with oxygen gas to form brown nitrogen dioxide gas.What would the products of the reaction be, if the reactants are those shown in the figure?

A) 6 molecules of nitrogen dioxide
B) 5 molecules of nitrogen dioxide, and 1 molecule of oxygen
C) 6 molecules of nitrogen dioxide, and 1 molecule of oxygen
D) 4 molecules of nitrogen dioxide, and 2 molecules of nitrogen monoxide
E) 3 molecules of nitrogen dioxide, and 3 molecules of nitrogen monoxide