The correct answer is (c) 15th.
Uttarakhand is the 15th largest state in India by geographical area, with a total area of 53,483 square kilometers. It is bordered by Himachal Pradesh to the north, Uttar Pradesh to the south, Nepal to the east, and China to the northwest. The state is home to the Himalayas, the highest mountain range in the world, and the Ganges River, one of the most sacred rivers in Hinduism. Uttarakhand is a popular tourist destination, known for its natural beauty, religious sites, and adventure sports.
The other options are incorrect. Option (a) is incorrect because Uttarakhand is not the 19th largest state in India by geographical area. Option (b) is incorrect because Uttarakhand is not the 16th largest state in India by geographical area. Option (d) is incorrect because Uttarakhand is not the 22nd largest state in India by geographical area.