Tourists interested in Buddhism often visit:

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

Rumtek Monastery is the seat of the Karmapa, the head of the Karma Kagyu lineage of Tibetan Buddhism. It is located in the Indian state of Sikkim. Pemayangtse Monastery is the oldest monastery in Sikkim. It is located in the town of Pemayangtse, about 15 kilometers from Gangtok, the capital of Sikkim. Enchey Monastery is a Buddhist monastery located in Gangtok, the capital of Sikkim. It is one of the most popular tourist destinations in Sikkim.

All three monasteries are important centers of Tibetan Buddhism and attract tourists from all over the world. They offer a glimpse into the rich culture and history of Tibetan Buddhism.