The correct answer is option 'C) Ladakh'

Explanation:
Naropa festival is associated with the state of Ladakh in India. Let's understand the significance of the Naropa festival and why it is celebrated in Ladakh.

1. Naropa Festival:
- The Naropa festival is a major Buddhist festival celebrated in honor of the 11th-century Indian Buddhist scholar and saint, Naropa.
- It takes place every 12 years according to the Tibetan calendar, making it a rare and significant event.

2. Associated State:
- Ladakh, a region in the northernmost part of India, is associated with the Naropa festival.
- Ladakh is located in the union territory of Jammu and Kashmir.
- The region is known for its rich Buddhist heritage and is often referred to as the "Land of High Passes."

3. Hemis Monastery:
- The Naropa festival is primarily celebrated at the Hemis Monastery, located in the Hemis village of Ladakh.
- Hemis Monastery is one of the most important and largest monasteries in Ladakh.
- It belongs to the Drukpa Lineage of Tibetan Buddhism and holds great spiritual significance.

4. Importance of the Festival:
- The Naropa festival attracts thousands of devotees, tourists, and Buddhist scholars from all over the world.
- The festival is known for its vibrant cultural performances, including masked dances, traditional music, and religious rituals.
- The highlight of the festival is the unveiling of the Naropa's Six Bone Ornaments, which are believed to possess immense spiritual power.

5. Spiritual Significance:
- The Naropa festival is considered highly auspicious and is believed to offer blessings, spiritual purification, and the opportunity to accumulate merit.
- It is celebrated as a reminder of the teachings and legacy of Naropa, who is revered as an enlightened being.

In conclusion, the Naropa festival is associated with the state of Ladakh in India. Ladakh's Hemis Monastery serves as the main venue for this grand Buddhist festival, which occurs every 12 years according to the Tibetan calendar.