CNG is better than petrol/ diesel, since (a) CNG burns more efficiently (b) CNG burns completely (c) CNG cannot be adulterated (d) All of the above
Option D. CNG burns most efficiently compared to petrol or diesel, in automobiles and very little of it is left unburnt. CNG is cheaper than petrol or diesel. CNG cannot be siphoned off by thieves. CNG cannot be adulterated like petrol or diesel.
