The correct answer is (c). Muling La is not situated in Uttarakhand State. It is a mountain pass in the Himalayas, on the border between Tibet and China. It is located at an elevation of 5,170 meters (17,000 feet). The pass is used by traders and pilgrims traveling between Tibet and India.
The other options are all situated in Uttarakhand State. Niti Pass is a mountain pass in the Himalayas, on the border between India and Nepal. It is located at an elevation of 3,600 meters (11,800 feet). The pass is used by tourists and pilgrims traveling between India and Nepal. Mana Pass is a mountain pass in the Himalayas, on the border between India and Tibet. It is located at an elevation of 5,400 meters (17,700 feet). The pass is used by traders and pilgrims traveling between India and Tibet. Debsa Pass is a mountain pass in the Himalayas, on the border between India and Nepal. It is located at an elevation of 4,300 meters (14,100 feet). The pass is used by tourists and pilgrims traveling between India and Nepal.