How does one determine a percent composition from an empirical formula? O A. Divide the total mass of each element by the mass of the Compound and multiply by 100% OB. Divide the atomic mass of the element by its subscript and multiplyby 100% OC. Divide the mass of the compound by the atomic mass of the element and multiply by100% O D. Divide the subscript of the element by the mass of the element and multiply by 100%