Which one of the following is a tributary of the Brahmaputra River?

The Manas River is a major right-bank tributary of the Brahmaputra River [4]. It is a transboundary river that originates in the Himalayan foothills near the Bhutan-Tibet border and flows through Bhutan before entering India's Assam state. In Assam, it meanders through the alluvial plains and joins the Brahmaputra near Jogighopa. Other significant right-bank tributaries of the Brahmaputra include the Subansiri, Kameng, and Sankosh [2]. In contrast, the Ghaggar is an ephemeral river in Rajasthan associated with the dry valley of the Saraswati [3]. The Kosi is a major tributary of the Ganga system, and the Mahi is a peninsular river that flows into the Gulf of Khambhat. The Brahmaputra system is characterized by numerous Himalayan tributaries that contribute to its high discharge and sediment load.

Sources

1. [1] INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 3: Drainage System > The Brahmaputra System > p. 23
2. [4] https://waterresources.assam.gov.in/portlet-innerpage/brahmaputra-river-system
3. [2] CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 3: Drainage > The Himalayan Rivers > p. 18
4. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 3: The Drainage System of India > SHIFTING COURSES OF THE RIVERS > p. 24