The correct answer is (c) Bhil.
The Tharu are an ethnic group native to the Terai region of Nepal and India. They are the largest tribal group in Uttarakhand, with a population of over 1 million. The Buksa are an ethnic group native to the Kumaon region of Uttarakhand. They have a population of over 200,000. The Jaunsari are an ethnic group native to the Garhwal region of Uttarakhand. They have a population of over 100,000. The Bhil are an ethnic group native to the central and western parts of India. They are the largest tribal group in India, with a population of over 10 million.
The Bhil are not found in Uttarakhand because they are native to the central and western parts of India. The Tharu, Buksa, and Jaunsari are all native to Uttarakhand.