A 4626 G Sample of a Hydrocarbon, Upon Combustion Analysis, Yielded

A 4.626 g sample of a hydrocarbon, upon combustion analysis, yielded 6.484 grams of carbon dioxide. What is the percent, by mass, of carbon in the hydrocarbon? Hint: Use moles to relate the quantities of the two substances.

A) 38.25 %
B) 19.47 %
C) 71.35 %
D) 40.16 %
E) 42.16 %