Which statement about balanced chemical equations is true?

A. The mass of the products is greater than the mass of the reactants when the number of moles increases.

B. The mass of the new atoms that are formed equals the mass of the atoms that made up the reactants.

C. The total number of moles of products equals the total number of
moles of reactants.

D. The total mass of the reactants equals the total mass of the
products.