The correct answer is D. Kangra Baspa.
The Ravi, Sutlej, and Beas are all major rivers in the Indian state of Himachal Pradesh. The Baspa, on the other hand, is a tributary of the Sutlej. It flows through the Kinnaur district of Himachal Pradesh.
The Ravi is a tributary of the Chenab River, which in turn is a tributary of the Indus River. The Sutlej is a tributary of the Yamuna River, which in turn is a tributary of the Ganges River. The Beas is a tributary of the Sutlej River.
The Ravi, Sutlej, and Beas are all important sources of irrigation and drinking water for the people of Himachal Pradesh. They are also popular tourist destinations. The Baspa is not as well-known as the other three rivers, but it is still a beautiful and scenic river.