Pure Benzene, C₆H₆, Freezes at 5 $\circ$ C and Boils at 80

Multiple Choice

Pure benzene, C₆H₆, freezes at 5.5 ^$\circ$ C and boils at 80.1 ^$\circ$ C. What is the boiling point of a solution consisting of cyclohexane (C₆H₁₂) dissolved in benzene if the freezing point of this solution is 0.0 ^$\circ$ C (For benzene, K_f = 5.12 ^$\circ$ C/m, K_b = 2.53 ^$\circ$ C/m; for cyclohexane, K_f = 20.0 ^$\circ$ C/m, K_b = 2.79 ^$\circ$ C/m)

A) 77.4 ^$\circ$ C
B) 80.9 ^$\circ$ C
C) 82.8 ^$\circ$ C
D) 83.1 ^$\circ$ C
E) 91.2 ^$\circ$ C