The correct answer is C. Both (A) and (B).
The district of Kargil is devoid of much natural vegetation and tree cover. This is because the climate in Kargil is very dry and cold, with an average annual rainfall of only 100 mm. The high altitude and low temperatures also make it difficult for trees to grow.
Most of the tree covers of poplar and willow trees are found in Leh district. This is because the climate in Leh is slightly more hospitable to tree growth, with an average annual rainfall of 200 mm. The lower altitude and higher temperatures make it easier for trees to grow in Leh.
Therefore, both statements are correct.