The correct answer is A. Ladakh.
Ladakh is a region in the Indian state of Jammu and Kashmir. It is located in the Himalayas and is one of the most sparsely populated regions in India. Ladakh has a very high potential to tap solar energy due to its high altitude and clear skies. The average solar radiation in Ladakh is about 5.5 kWh/m2/day, which is much higher than the national average of 3.4 kWh/m2/day. Ladakh also has a very low population density, which means that there is plenty of land available for solar power plants.
Jammu is a region in the Indian state of Jammu and Kashmir. It is located in the foothills of the Himalayas and is one of the most densely populated regions in India. Jammu has a lower potential to tap solar energy than Ladakh due to its lower altitude and more cloudy skies. The average solar radiation in Jammu is about 4.5 kWh/m2/day, which is still higher than the national average of 3.4 kWh/m2/day. However, Jammu has a much higher population density than Ladakh, which means that there is less land available for solar power plants.
Kashmir is a region in the Indian state of Jammu and Kashmir. It is located in the Himalayas and is one of the most popular tourist destinations in India. Kashmir has a lower potential to tap solar energy than Ladakh due to its lower altitude and more cloudy skies. The average solar radiation in Kashmir is about 4.0 kWh/m2/day, which is still higher than the national average of 3.4 kWh/m2/day. However, Kashmir has a much higher population density than Ladakh, which means that there is less land available for solar power plants.
In conclusion, Ladakh has the highest potential to tap solar energy among the three regions. This is due to its high altitude, clear skies, and low population density.