A particular compound contains, by mass, 40.0% carbon, 6.71% hydrogen, and 53.29% oxygen. A 0.50 mol sample of this compound weighs 30.0 g. The molecular formula of this compound is:
a) C₂H₄O
b) C₄H₆O₂
c) C₆H₁₀O₄
d) C₃H₆O₃