Correct Answer: (c) Thar Desert
Note: The difference between the day and night temperatures is likely to be the highest in arid or desert regions. During the day, the land surface heats up quickly due to intense sunlight and lack of vegetation cover, leading to high temperatures. At night, the same surface cools down rapidly due to low humidity and lack of cloud cover, resulting in low temperatures. Therefore option (c), Thar desert is the correct answer