The correct answer is: b) Pala Dynasty.
The Pala Dynasty was a Buddhist dynasty that ruled over Bengal and Bihar in India from the 8th to the 12th centuries. They were patrons of Buddhism and built many monasteries and temples. The Nyingma lineage of Tibetan Buddhism is one of the four major schools of Tibetan Buddhism. It is the oldest school of Tibetan Buddhism and is said to have been founded by Padmasambhava in the 8th century. The Nyingma lineage is prevalent in Arunachal Pradesh, which is a state in northeastern India.
The other options are incorrect because:
- Padmasambhava was a Buddhist teacher who lived in the 8th century. He is credited with introducing Buddhism to Tibet and is considered the founder of the Nyingma lineage of Tibetan Buddhism. However, he was not a dynasty.
- The Chutiya Dynasty was a Hindu dynasty that ruled over parts of Assam and Arunachal Pradesh from the 12th to the 16th centuries. They were not patrons of Buddhism and did not build any Buddhist monasteries or temples.
- The Ahom Kingdom was a Tai-Shan kingdom that ruled over Assam from the 13th to the 19th centuries. They were patrons of Hinduism and did not build any Buddhist monasteries or temples.