A sample of blister copper contains 99.15% copper and 0.55% iron by mass, with the remainder being sulfur impurity. What is the mass of sulfur in a 120.0 g sample of this blister copper?
0.66 g0.66\text{ g}0.66 g
1.02 g1.02\text{ g}1.02 g
0.36 g0.36\text{ g}0.36 g
3.60 g3.60\text{ g}3.60 g