The use a hydro-electric dams, fuel oil and natural gas resulted in a decline in the demand for gasoline and option C is correct.
What is natural gas?
Natural gas is the cleanest fossil fuel among all the fossil fuel that are present in the world. Natural gas is comparatively very less expensive than other fuels present in the market and is available throughout the world.
Natural gas is produced either by using conventional or renewable methods and can be used as a alternative fuel for the vehicles and engines.
Gasoline is expensive than natural gas and the use of natural gas can cause a decline in the demand for gasoline. Similarly the use of hydroelectric dams and fuel oil can also cause a decrease in demand for gasoline in the market.
Therefore, the use of hydroelectric dams, natural gas and fuel oil can result in the decline in demand for gasoline.
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