Which of the following statements is correct about the reaction giv...

Which of the following statements is correct about the reaction given below? \(\mathrm{4Fe(s) + 3O_2(g)\longrightarrow 2Fe_2O_3(s)}\)

A. Total mass of iron and oxygen in reactants = total mass of iron and oxygen in product therefore, it follows law of conservation of mass.

B. Total mass of reactants = total mass of product; therefore, law of multiple proportions is followed.

C. Amount of \(\mathrm{Fe_2O_3}\) can be increased by reducing the amount of any one of the reactants (iron or oxygen).

D. Amount of \(\mathrm{Fe_2O_3}\) produced will decrease if the amount of any one of the reactants (iron or oxygen) is taken in excess.