Which major airline merger resulted in the creation of the world's largest airline at the time (2013), combining two carriers with distinctly different livery colors?

The transportation industry has witnessed numerous strategic mergers that have reshaped the aviation landscape. Some consolidations created industry giants while others disappeared into history. This poll tests your knowledge about a significant airline merger that changed the competitive dynamics of air travel. Think you know your aviation history? Put your industry knowledge to the test!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

American Airlines and US Airways (red/silver and blue/red)
Delta Air Lines and Northwest Airlines (blue/red and red/white)
United Airlines and Continental Airlines (blue/white and blue/gold)
Southwest Airlines and AirTran Airways (blue/red/yellow and teal/white)