Explanation
The correct answer is D: Sharada.
The Sharada river is not a tributary of the River Ganga. It is a river that flows through Pakistan-administered Kashmir and joins the Jhelum River.
On the other hand, the Sone river, Mahanadi river, and Teesta river are all tributaries of the River Ganga. The Sone river is a major tributary that joins the Ganga in Bihar. The Mahanadi river is a major river that flows through the eastern Indian states of Chhattisgarh and Odisha before joining the Bay of Bengal. The Teesta river is a river that flows through the Indian states of Sikkim and West Bengal before joining the Brahmaputra river in Bangladesh.