The tourism sector in Arunachal Pradesh is known for its:

The correct answer is: d) All of the above.

Arunachal Pradesh is a state in northeastern India. It is known for its natural beauty, including its mountains, forests, and rivers. It is also home to a number of different ethnic groups, each with its own unique culture and traditions. The state is a popular destination for adventure tourism, as it offers a variety of activities such as trekking, mountaineering, and white-water rafting. It is also home to a number of spiritual and religious sites, including Buddhist monasteries and Hindu temples.

Here is a brief description of each option:

• Natural beauty and cultural heritage: Arunachal Pradesh is home to a number of different landscapes, including mountains, forests, and rivers. The state is also home to a number of different ethnic groups, each with its own unique culture and traditions.
• Adventure tourism opportunities: Arunachal Pradesh offers a variety of adventure tourism activities, such as trekking, mountaineering, and white-water rafting.
• Spiritual and religious sites: Arunachal Pradesh is home to a number of spiritual and religious sites, including Buddhist monasteries and Hindu temples.