Correct Answer: Geothermal energy

Solution : The correct option is Geothermal energy.

Geothermal energy is often regarded as the energy source that contributes the least to global warming. Geothermal energy is generated by using the heat stored under the Earth's surface. It is regarded as a renewable and low-carbon energy source since it emits fewer greenhouse gases than fossil fuels such as coal, natural gas, and petroleum. In terms of global warming impact, geothermal power plants generate very low amounts of carbon dioxide (CO2) and other pollutants, making them a more ecologically benign energy alternative.