The heat liberated when 1.89 g of benzoic acid burnt in a bomb calorimeter at `25^(@)C` increases the temperature of 18.94 kg of water by `0.632^(@)C`. If the specific heat of water at `25^(@)C` is 0.998 cal/g-deg, the value of the heat combustion of benzoic acid is
A. 771.1 kcal
B. 871.2 kcal
C. 881.1 kcal
D. 981.1 kcal