Correct Answer: Indus

Solution : The correct option is Indus .

The mouth of the Indus River lies in the south of the Tropic of Cancer. The Indus River flows through Pakistan and empties into the Arabian Sea, in the south of the Tropic of Cancer. The Indus River is one of the longest rivers in the world, flowing through China, India and Pakistan. It originates in the Tibetan plateau in China, travels through the Indian-administered region of Jammu and Kashmir and continues into Pakistan.