Which one of the following National Parks has a climate that varies from tropical to subtropical, temperate and arctic?

The correct option is Namdapha National Park.

Namdapha National Park is located in the Changlang district of Arunachal Pradesh in Northeast India. It is a large protected area nestled in the Eastern Himalayas, which is a biodiversity hotspot.
The climate of Namdapha National Park varies significantly from tropical to subtropical, temperate, and arctic due to its unique geographical location and extreme altitudinal variation. The altitude within the park ranges from approximately 200 meters to over 4,500 meters above sea level.

This wide elevational range creates distinct climatic zones and corresponding vegetation types within the same park:
1. Tropical and Subtropical: Found in the lower reaches and valleys (up to 1,000 meters), characterized by wet evergreen rainforests.
2. Temperate: Found in the middle elevations (1,000 to 3,000 meters), featuring deciduous and coniferous forests.
3. Arctic / Alpine: Found in the highest elevations (above 3,500 meters) near the mountain peaks, which are covered with alpine meadows and permanent snow, exhibiting arctic-like conditions.