The correct answer is: A. Banihal Pass.
The Banihal Pass is a mountain pass in the Pir Panjal Range in the Indian state of Jammu and Kashmir. It is located at an elevation of 3,100 meters (10,200 feet) and is the main road link between the Kashmir Valley and the Jammu region. The pass is also known as the Jawahar Tunnel, after the first Prime Minister of India, Jawaharlal Nehru.
The Banihal Pass was an important trade route between India and Central Asia for centuries. It was also a major military route during the British Raj. The pass was closed for several months each year due to heavy snowfall. However, the construction of the Jawahar Tunnel in 1970 made the pass accessible all year round.
The Jawahar Tunnel is a 8.5-kilometer (5.3-mile) long tunnel that runs through the Banihal Pass. It is the longest tunnel in India and the second longest tunnel in Asia. The tunnel was built at a cost of Rs. 200 crore (US$27 million) and was completed in 1970.
The Jawahar Tunnel has significantly reduced the travel time between the Kashmir Valley and the Jammu region. It has also made the pass accessible all year round. The tunnel has had a major impact on the economy of the region and has helped to boost tourism.
The other options are incorrect because they are not mountain passes in Kashmir valley.