Chemistry · Sources of Energy and Fuels

The properties of four fuels are given below: Fuel A: Calorific value = 17 kJ/g, State = Solid, Ignition Temp = High Fuel B: Calorific value = 45 kJ/g, State = Liquid, Ignition Temp = Moderate Fuel C: Calorific value = 55 kJ/g, State = Gas, Ignition Temp = Very Low Fuel D: Calorific value = 20 kJ/g, State = Liquid, Ignition Temp = Moderate Which of the following is the best option as a fuel for domestic purposes?