Cholesterol Is Poorly Soluble in Water, but It Will Dissolve $\degree$

Cholesterol is poorly soluble in water, but it will dissolve in nonpolar solvents such as cyclohexane (C₆H₁₂, 84.18 g/mol, K_f = 20.2 $\degree$ C/m, T_f = 6.55 $\degree$ C) .When 10.0 g cholesterol was dissolved in 0.500 kg cyclohexane, the freezing point of the solution was 5.50 $\degree$ C.What is the approximate molar mass of cholesterol?

A) 404 g/mol
B) 385 g/mol
C) 73.5 g/mol
D) 248 g/mol
E) 424 g/mol