Detailed Explanation:

Answer: Option 1 — 1 and 2 only

Musk deer are found in high-altitude Himalayan regions, typically above 2,500 meters. Askot Wildlife Sanctuary and Gangotri National Park, both located in Uttarakhand's Himalayan ranges, provide the ideal alpine and subalpine habitat for musk deer. Kishanpur Wildlife Sanctuary consists of terai grasslands unsuitable for musk deer, while Manas National Park in Assam is a lowland tropical forest ecosystem that does not support musk deer populations.

✅ Statement 1 – Correct: Askot Wildlife Sanctuary in Uttarakhand is specifically known for musk deer conservation in high-altitude Himalayan habitat.
✅ Statement 2 – Correct: Gangotri National Park in Uttarakhand is a high-altitude region where musk deer are naturally found.
❌ Statement 3 – Incorrect: Kishanpur Wildlife Sanctuary in Uttar Pradesh has terai grasslands, not the high-altitude habitat required by musk deer.
❌ Statement 4 – Incorrect: Manas National Park in Assam is a lowland tropical forest unsuitable for musk deer which require alpine habitats.

📝 Short Notes: Musk Deer

• Scientific Name: Moschus species (Himalayan Musk Deer - Moschus leucogaster)
• Habitat: High-altitude Himalayan forests (2,500-4,500 m), alpine meadows, and scrub zones
• Distribution in India: Uttarakhand, Himachal Pradesh, Jammu & Kashmir, Sikkim, and Arunachal Pradesh
• Conservation Status: Endangered (IUCN); Schedule I (Wildlife Protection Act, 1972)
• Key Feature: Males possess musk gland (pod) that produces valuable musk, leading to illegal poaching
• Protected Areas: Askot Wildlife Sanctuary, Gangotri National Park, Kedarnath Wildlife Sanctuary, Great Himalayan National Park, Nanda Devi National Park
• Threats: Habitat loss, poaching for musk, climate change affecting alpine habitats