The correct answer is: A. Changthang Wildlife Sanctuary.
The Changthang Wildlife Sanctuary is a protected area in the Indian state of Jammu and Kashmir. It is located in the Changthang region of Ladakh, and is the largest wildlife sanctuary in India. The sanctuary is home to a variety of wildlife, including snow leopards, Tibetan wolves, and blue sheep.
The Changthang Wildlife Sanctuary is a part of the Hindu Kush Himalayas, which is a mountain range that runs through Central Asia. The Hindu Kush Himalayas is a biodiversity hotspot, and is home to a variety of plant and animal species.
The other options are incorrect because they are not located in the Hindu Kush Himalayas.
- Ramnagar Wildlife Sanctuary is located in the Indian state of Uttarakhand.
- Trikula Wildlife Sanctuary is located in the Indian state of Kerala.
- Surinsar Mansar Wildlife Sanctuary is located in the Indian state of Jammu and Kashmir.