Correct Option: D

The Himalayan subtropical pine forests are a large subtropical coniferous forest eco-region covering portions of Bhutan, India, Nepal, and Pakistan. This huge pine forest stretches for 3000 km across the lower elevations of the great Himalaya range for almost its entire length including parts of Pakistan's Punjab Province in the west through Azad Kashmir, the northern Indian states of Jammu and Kashmir, Himachal Pradesh, Uttarakhand and Sikkim, Nepal and Bhutan.