The Tawang Monastery, a significant Buddhist pilgrimage site, is believed to have been established in the:

5th century BCE
7th century CE
12th century CE
17th century CE

The correct answer is: d) 17th century CE.

The Tawang Monastery is a Buddhist monastery in Tawang district of Arunachal Pradesh, India. It is the largest monastery in India and the second largest in the world after the Potala Palace in Lhasa, Tibet. The monastery is believed to have been established in the 17th century by Tsangyang Gyatso, the sixth Dalai Lama.

The monastery is a major pilgrimage site for Buddhists from all over the world. It is also a popular tourist destination. The monastery is home to a large number of monks and nuns. It is also a center of learning and scholarship.

The monastery is a beautiful example of Tibetan architecture. It is built on a hilltop and has a large golden stupa at its center. The monastery is surrounded by a wall and has a number of temples and shrines within its complex.

The monastery is a UNESCO World Heritage Site. It is a significant cultural and religious site. It is also a popular tourist destination.

The other options are incorrect because:

  • The 5th century BCE is too early. Buddhism was not yet established in India at that time.
  • The 7th century CE is too early. The first Buddhist monasteries were not established in India until the 8th century CE.
  • The 12th century CE is too early. The Tawang Monastery is believed to have been established in the 17th century CE.

I hope this helps!