The correct answer is (d). Gaddi is a tribe that belongs to Himachal Pradesh, not Uttarakhand.
The Tharu are an ethnic group native to the Terai region of Nepal and India. They are the largest ethnic group in Nepal, and they are also a significant minority in Uttarakhand. The Bhotia are an ethnic group native to the Himalayan region of India and Nepal. They are divided into several sub-groups, including the Jaunsari Bhotia, the Garhwal Bhotia, and the Kumaon Bhotia. The Raji are an ethnic group native to the Kumaon region of Uttarakhand. They are a small group, and they are often considered to be a sub-group of the Bhotia. The Gaddi are an ethnic group native to the Himachal Pradesh region of India. They are a pastoral people, and they are known for their skills in sheepherding.