The correct answer is D. Nagaland, Assam.
The Mina people are an ethnic group found in the Indian states of Nagaland and Assam. They are one of the major tribes in Nagaland, and are also found in the neighboring state of Assam. The Mina people are believed to have originated in the hills of Nagaland, and they have a long and rich history. The Mina people are known for their unique culture and traditions, and they are also known for their bravery and warrior spirit.
The Mina people are a matrilineal society, which means that property and inheritance are passed down through the female line. The Mina people also have a strong oral tradition, and they pass down their history and culture through stories and songs. The Mina people are a proud and independent people, and they have a strong sense of community.
The Mina people are a diverse group, and there are many different sub-groups within the Mina people. However, all Mina people share a common culture and heritage. The Mina people are a beautiful and unique people, and they play an important role in the culture and history of Nagaland and Assam.
Option A is incorrect because the Mina people are not found in Tripura. Option B is incorrect because the Mina people are not found in Sikkim. Option C is incorrect because the Mina people are not found in Rajasthan.