A. Kuala Lumpur to Singapore
B. New York to Washington
C. Beijing to Shanghai
D. Singapore to New York
🧠 Explanation:
The Kuala Lumpur to Singapore route is the busiest air route, according to OAG data. This fact is a key topic in aviation and geography, engaging travelers and analysts. Understanding this route’s prominence clarifies global travel patterns, relevant for studying air transport. Its high traffic attracts those exploring aviation trends, highlighting its role in connecting major economic hubs, emphasizing its significance in global tourism and business travel networks.
