100 kg of tin is to be smelt during an hour in a smelting furnace. If the smelting temperature of tin = $$235^\circ C$$ , specific heat = 0.054 , latent heat of liquidification = 13.3k cal/kg , initial temperature of tin = $$35^\circ C$$ , value of J = 4200J/k cal , then the capacity of the furnaces is

A

2.81 kW

B

1.26 kW

C

2812 kW

D

3032 kW