(A) Indus
(B) Ravi
(C) Chenab
(D) Jhelum
🧠 Explanation:
The largest river plays a vital role in the country’s agriculture, economy, and ecosystem. Originating from distant mountainous regions, it flows through multiple provinces, providing water for irrigation, drinking, and industry. Its extensive network supports a vast population and enables the cultivation of essential crops. The river’s basin includes numerous tributaries, which contribute to its volume and reach. Historically, this river has been central to the development of civilizations and continues to influence cultural and economic activities. Its management and preservation are crucial for sustaining the country’s growth and environmental balance.