Kerala has been promoting the development of renewable energy sources like:

Solar
Wind
Biomass
All of the above

The correct answer is: D) All of the above.

Kerala has been promoting the development of renewable energy sources like solar, wind, and biomass. The state has set a target of generating 100% of its electricity from renewable sources by 2030.

Solar energy is the most popular renewable energy source in Kerala. The state has a large installed capacity of solar power plants. The government has also been promoting rooftop solar power generation.

Wind energy is another important renewable energy source in Kerala. The state has a number of wind farms. The government has also been promoting rooftop wind power generation.

Biomass energy is a third important renewable energy source in Kerala. The state has a number of biomass power plants. The government has also been promoting the use of biomass for cooking and heating.

The development of renewable energy sources has a number of benefits for Kerala. It can help to reduce the state’s dependence on imported fossil fuels, it can create jobs, and it can improve air quality.