The correct answer is: d) All of the above.
The Beas, Chenab, and Ravi are all major rivers in Punjab that are tributaries of the Indus River. The Indus River is the longest river in Pakistan and the second-longest river in India. It flows through the Himalayas and the Punjab region, and it is a major source of water for irrigation and drinking water.
The Beas River is the second-largest tributary of the Indus River. It originates in the Himalayas and flows through the Indian states of Himachal Pradesh and Punjab. The Chenab River is the third-largest tributary of the Indus River. It originates in the Himalayas and flows through the Indian states of Jammu and Kashmir, Himachal Pradesh, and Punjab. The Ravi River is the fourth-largest tributary of the Indus River. It originates in the Himalayas and flows through the Indian states of Himachal Pradesh and Punjab.
The Beas, Chenab, and Ravi rivers are all important sources of water for irrigation and drinking water. They are also important for transportation and fishing. The rivers are home to a variety of wildlife, including fish, birds, and mammals.