24 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products.

AThe mass of the reactants equals the mass of the products.
BThe mass of the reactants is less than the mass of the products.
CThe mass of the reactants is greater than the mass of the products.
DThe mass of the products is always greater than the mass of the reactants.