The correct answer is (a). Karbi Anglong Hills are known for their subtropical pine forests.
The Karbi Anglong Hills are a mountain range in the Indian state of Assam. They are located in the north-eastern part of the state, and are part of the Eastern Himalayas. The hills are named after the Karbi people, who are the indigenous inhabitants of the region.
The Karbi Anglong Hills are home to a variety of plant and animal life. The forests on the hills are subtropical pine forests, and are home to a variety of pine trees, including the chir pine, the blue pine, and the Himalayan silver fir. The forests are also home to a variety of animals, including tigers, leopards, elephants, and deer.
The Karbi Anglong Hills are a popular tourist destination. The hills are home to a number of scenic waterfalls, including the Nohkalikai Falls, which is the highest waterfall in India. The hills are also home to a number of tribal villages, which offer visitors a glimpse into the traditional way of life of the Karbi people.
The other options are incorrect because:
- The Khasi Hills are located in the state of Meghalaya, and are not known for their subtropical pine forests.
- The Garo Hills are located in the state of Meghalaya, and are not known for their subtropical pine forests.
- The Barail Range is located in the state of Assam, and is not known for its subtropical pine forests.