Explanations:West Bengal, a state in eastern India, is known for its diverse geography and significant river systems. The rivers that flow through West Bengal play a crucial role in the state's economy, agriculture, and culture. The two major rivers that flow through West Bengal are the Hooghly and the Teesta.
The Hooghly River is a distributary of the Ganges River. It originates from the Ganges at the Farakka Barrage in West Bengal and flows southward through the state before emptying into the Bay of Bengal. The Hooghly River is of great historical and economic importance, as it has been a major trade route since ancient times. It is also a significant source of water for irrigation and supports a large population along its banks.
The Teesta River originates in the Himalayas in Sikkim and flows through West Bengal before joining the Brahmaputra River in Bangladesh. The Teesta is an important river for the people of West Bengal, providing water for irrigation, drinking, and other domestic uses. It also supports a rich biodiversity and is a vital part of the state's ecosystem.
It is important to note that while the Hooghly and Teesta rivers are significant, other smaller rivers and streams also flow through West Bengal. However, the question specifically asks about the major rivers that flow through the state, and the Hooghly and Teesta are the two most prominent.
The Krishna River, on the other hand, is not a river that flows through West Bengal. It is a major river in southern India, flowing through the states of Maharashtra, Karnataka, and Andhra Pradesh. The Krishna River is known for its length and the significant role it plays in the agricultural and economic activities of the states it flows through, but it does not have any connection with West Bengal.
Therefore, the correct answer is that only the Hooghly and Teesta rivers flow through West Bengal, making option D the correct choice.