Explanation: West Bengal, a state in eastern India, is characterized by its diverse geography, which includes several significant river systems. The rivers flowing through West Bengal play a crucial role in the state's economy, culture, and ecology. Among these rivers, the Hooghly and Teesta are two of the most important.
The Hooghly River, also known as Bhagirathi-Hooghly, is a distributary of the Ganges River. It originates from the confluence of the Bhagirathi and Alakananda rivers in the Himalayas and flows through West Bengal before emptying into the Bay of Bengal. The Hooghly River is not only a major waterway but also a significant cultural and historical landmark. It has been a vital artery for trade and commerce, connecting Kolkata, the largest city in West Bengal, to the sea. The river's importance is further highlighted by its role in the development of the region's economy and its influence on the local culture.
The Teesta River, on the other hand, is a major river in the northern part of West Bengal. It originates in the Himalayas and flows through the Darjeeling and Jalpaiguri districts before joining the Brahmaputra River in Bangladesh. The Teesta River is crucial for the agricultural economy of the region, providing water for irrigation and supporting the livelihoods of many farmers. It also plays a significant role in the ecological balance of the area, supporting a diverse range of flora and fauna.
It is important to note that while the Hooghly and Teesta rivers are the most prominent rivers flowing through West Bengal, there are other smaller rivers and streams that contribute to the state's river system. However, the Hooghly and Teesta are the most significant in terms of their impact on the region's geography, economy, and culture.
The Krishna River, mentioned in option C, is not a river that flows through West Bengal. It is a major river in southern India, primarily flowing through the states of Maharashtra, Karnataka, and Andhra Pradesh. This river is significant for the southern states but is not relevant to the geography of West Bengal.
In conclusion, the correct answer is option D, which correctly identifies the Hooghly and Teesta rivers as the major rivers flowing through West Bengal. Understanding the river systems of West Bengal is essential for comprehending the state's geographical and environmental characteristics, as well as its economic and cultural significance.