Correct Answer:

B: 3-1-4-2

Explanation of Options:

Option 3 (Ooty) is correct:  
 • Ooty, also known as Udhagamandalam, is located in the Nilgiri Hills in Tamil Nadu.
 • It is situated at an elevation of approximately 2,240 meters (7,350 feet) above sea level.
 • This makes it one of the highest hill stations in India.
 • Its cool climate and scenic beauty attract many tourists.

Option 1 (Mussoorie) is correct:  
 • Mussoorie is located in the state of Uttarakhand.
 • It is situated at an elevation of about 2,005 meters (6,578 feet) above sea level.
 • Known as the "Queen of the Hills," it offers panoramic views of the Himalayas.
 • It is a popular destination for its pleasant weather and colonial architecture.

Option 4 (Darjeeling) is correct:  
 • Darjeeling is located in the state of West Bengal.
 • It is situated at an elevation of approximately 2,042 meters (6,700 feet) above sea level.
 • Famous for its tea plantations and the Darjeeling Himalayan Railway, a UNESCO World Heritage Site.
 • It offers stunning views of the Kanchenjunga mountain range.

Option 2 (Shimla) is correct:  
 • Shimla is the capital city of Himachal Pradesh.
 • It is situated at an elevation of about 2,276 meters (7,467 feet) above sea level.
 • Known for its Victorian architecture and as a summer retreat during the British Raj.
 • It is a popular tourist destination for its cool climate and scenic beauty.

In conclusion, the correct order from highest to lowest in terms of elevation is Ooty, Mussoorie, Darjeeling, and Shimla, making option B the correct answer.