A solution containing 12.5g of non-electrolyte substance in 185g of water shows boiling point elevation of 0.80K. Calculate the molar mass of the substance. (Kb = 0.52K kg mol⁻¹)

A. 16.08g mol⁻¹
B. 43.92g mol⁻¹
C. 53.06g mol⁻¹
D. 25.3g mol⁻¹