The correct answer is: b) Brahmaputra.
The Brahmaputra is the main river of Assam. It is the ninth longest river in the world and the second longest river in India. It originates in the Himalayas and flows through China, India, and Bangladesh. The Brahmaputra is a major source of water for irrigation and hydroelectric power. It is also a major transportation route.
The Ganges is the longest river in India. It originates in the Himalayas and flows through the states of Uttarakhand, Uttar Pradesh, Bihar, Jharkhand, and West Bengal. The Ganges is a major source of water for irrigation and hydroelectric power. It is also a major transportation route and a sacred river for Hindus.
The Godavari is the second longest river in India. It originates in the Western Ghats and flows through the states of Maharashtra, Telangana, Andhra Pradesh, and Karnataka. The Godavari is a major source of water for irrigation and hydroelectric power. It is also a major transportation route.
The Barak is a river in northeastern India. It originates in the Manipur Hills and flows through the states of Manipur, Assam, and Mizoram. The Barak is a major source of water for irrigation and hydroelectric power. It is also a major transportation route.