Correct Answer: Option B) 1 and 2 only
The Indus River is also called the national river of Pakistan.
This statement is correct. The Indus River is indeed considered the national river of Pakistan. It is the longest river in Pakistan and plays a crucial role in the country's agriculture, economy, and cultural identity.
Sutlej is the only Indus tributary originating in Tibet.
This statement is correct. The Sutlej River originates from Lake Rakshastal in Tibet (near Mount Kailash) and is the only major tributary of the Indus that has its source in Tibet.
All tributaries of Indus originate in India.
This statement is incorrect. While several important tributaries of the Indus do originate in India (like Jhelum, Chenab, Ravi, and Beas), not all of them do. As mentioned in statement 2, the Sutlej originates in Tibet. Additionally, some other tributaries originate in Pakistan and Afghanistan.