The correct answer is Shipki La.
Shipki La is a high mountain pass in the Himalayas on the border between India and China. It is located in the Kinnaur district of Himachal Pradesh, India, and the Ngari Prefecture of Tibet, China. The pass is at an elevation of 4,940 meters (16,210 feet) above sea level.
The Shipki La was traditionally used as a trade route between India and Tibet. However, it was closed in 1962 after the Sino-Indian War. It was reopened in 1992 for limited trade.
The Shipki La is a popular destination for trekking and mountaineering. The pass is also a popular destination for bird watching.
The other options are incorrect because they are not located on the historic Hindustan-Tibet Road.
- Mana Pass is a high mountain pass in the Himalayas on the border between India and Nepal. It is located in the Chamoli district of Uttarakhand, India, and the Mustang District of Nepal. The pass is at an elevation of 5,650 meters (18,540 feet) above sea level.
- Zoji La Pass is a high mountain pass in the Himalayas on the border between India and Jammu and Kashmir. It is located in the Leh district of Ladakh, India, and the Kargil district of Jammu and Kashmir. The pass is at an elevation of 3,400 meters (11,150 feet) above sea level.
- Nathu La Pass is a high mountain pass in the Himalayas on the border between India and China. It is located in the Sikkim district of Sikkim, India, and the Shigatse Prefecture of Tibet, China. The pass is at an elevation of 4,310 meters (14,170 feet) above sea level.