The correct answer is: c) Tibet.
Thangka paintings are a form of Tibetan Buddhist art that originated in the 11th century. They are typically made on cotton or silk cloth and depict religious subjects, such as Buddhas, bodhisattvas, and mandalas. Thangkas are often used in religious ceremonies and are also popular tourist souvenirs.
The regions of Arunachal Pradesh with strong ties to Tibet are the Tawang district and the West Kameng district. These districts are located in the eastern part of Arunachal Pradesh, bordering Tibet. The people of these districts are ethnically Tibetan and speak the Tibetan language. They practice Tibetan Buddhism and have strong cultural ties to Tibet.
The other options are incorrect because:
- Assam is a state in India that is located to the south of Arunachal Pradesh. Assam does not have strong ties to Tibet.
- China is a country that is located to the north of Arunachal Pradesh. China has a long history of conflict with Tibet.
- Myanmar is a country that is located to the west of Arunachal Pradesh. Myanmar does not have strong ties to Tibet.