Explanation:

- The Yangtze River is the longest river in Asia and the third longest in the world, spanning about 6,300 kilometers.

- The Yenisei River is a major river in Siberia, Russia, but it’s not the longest in Asia.

- The Amazon River is known for its massive discharge, but it is located in South America, not Asia.

- The Nile River is one of the longest rivers globally but is located in Africa.

The correct answer is option:4 - Yangtze.

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