The correct answer is: a) Rainforests.
The Dehing Patkai Wildlife Sanctuary is a biodiversity hotspot famous for its rainforests. It is located in the eastern Indian state of Assam. The sanctuary is home to a variety of plant and animal life, including tigers, elephants, and rhinoceroses. The rainforests of the Dehing Patkai Wildlife Sanctuary are some of the most biodiverse in the world. They are home to a variety of plant and animal life, including many species that are found nowhere else on Earth. The rainforests are also an important source of water and other resources for the people who live in the area.
Option b) is incorrect because the Dehing Patkai Wildlife Sanctuary is not a tiger sanctuary. The sanctuary is home to a variety of animals, including tigers, but it is not specifically designated as a tiger sanctuary.
Option c) is incorrect because the Dehing Patkai Wildlife Sanctuary is not an elephant reserve. The sanctuary is home to a variety of animals, including elephants, but it is not specifically designated as an elephant reserve.
Option d) is incorrect because the Dehing Patkai Wildlife Sanctuary does not have wild horses. The sanctuary is home to a variety of animals, but wild horses are not among them.