The correct answer is: D. Dwarf Juniper
Ladakh is a cold desert region in the Himalayas. It is home to a variety of plants and animals, including the dwarf juniper tree. The dwarf juniper is a small, slow-growing tree that is adapted to the cold, dry climate of Ladakh. It is found in the mountains and valleys of Ladakh, and it is an important part of the local ecosystem. The dwarf juniper provides food and shelter for a variety of animals, and it is also used by humans for firewood and medicinal purposes.
The other options are incorrect because they are not native to Ladakh. Juniper is a type of tree that is found in many parts of the world, but the dwarf juniper is the only type of juniper that is native to Ladakh. Olive is a type of tree that is native to the Mediterranean region, babool is a type of tree that is native to India and Pakistan, and none of these trees are found in Ladakh.