The correct option is (d).
Explanation
The Himalayan region, particularly the high-altitude zones and the Trans-Himalayan cold deserts (such as Ladakh), hosts a unique assemblage of fauna adapted to extreme cold, rugged terrain, and low oxygen levels. These animals are typically characterized by thick fur and robust physiology.
Analysis of the Animals:
- 1. Yak: Correct. The Yak (Bos grunniens) is iconic to the Himalayan region. It is widely found in the high altitudes of India (Ladakh, Himachal Pradesh, Sikkim, Arunachal Pradesh), Nepal, and Tibet, serving as a vital resource for milk, meat, and transport.
- 2. Shaggy horned wild ox: Correct. Standard geographical texts explicitly list the "shaggy horned wild ox" alongside the yak as part of the Himalayan fauna. This refers to the Wild Yak (Bos mutus), a massive bovid weighing nearly one tonne, found in the Tibetan plateau and adjacent high-altitude regions.
- 3. Tibetan Antelope: Correct. Also known as the Chiru, the Tibetan Antelope is native to the Tibetan Plateau and the Ladakh region of India. It is an endangered species, historically hunted for its extremely fine underfur known as Shahtoosh.
- 4. Kiang (Tibetan wild ass): Correct. The Kiang is the largest of the wild asses and is native to the Tibetan Plateau and the high-altitude plains of Ladakh and northern Sikkim.
Key Takeaway:
The high-altitude Himalayan and Trans-Himalayan ecosystems are the natural habitat for specialized cold-adapted mammals, including the Yak, Shaggy horned wild ox, Tibetan Antelope (Chiru), and Kiang.