The correct answer is c) Vajrayana (Tibetan).
The Monpa and Sherdukpen tribes of Arunachal Pradesh are ethnic groups that live in the eastern Himalayas. They are both Buddhist, and they follow the Vajrayana tradition of Buddhism. Vajrayana is a form of Buddhism that is characterized by its use of ritual, magic, and meditation. It is also known as Tibetan Buddhism, as it is the dominant form of Buddhism in Tibet.
Theravada is the oldest surviving school of Buddhism. It is practiced in Sri Lanka, Myanmar, Thailand, Cambodia, Laos, and Vietnam. Mahayana is the largest school of Buddhism. It is practiced in China, Japan, Korea, Vietnam, and Taiwan. Zen is a form of Mahayana Buddhism that is practiced in Japan.
The Monpa and Sherdukpen tribes are both indigenous peoples of Arunachal Pradesh. They have a long history of living in the region, and they have a rich culture and tradition. They are both Buddhist, and they follow the Vajrayana tradition of Buddhism. Vajrayana is a form of Buddhism that is characterized by its use of ritual, magic, and meditation. It is also known as Tibetan Buddhism, as it is the dominant form of Buddhism in Tibet.