The following reaction can be used to convert carbon dioxide to oxygen gas. 4 KOH (s) + 2 CO2 (g) → 2 K2CO3 (s) + 3 O2 (g). The theoretical yield for the reaction is 0.306 g O2. Given that the reaction has a percent yield of 83.4, what is the mass in g of oxygen gas that is actually produced?
A. 0.256 g
B. 0.286 g
C. 0.326 g
D. 0.356 g