Which major airline first implemented the APEX (Airline Passenger Experience Association) standardized survey system that revolutionized in-flight feedback collection?

The transportation industry, particularly aviation, has evolved significantly in how it collects and implements customer feedback. Airlines have developed sophisticated systems to gather passenger insights that directly influence service improvements, aircraft design, and overall customer experience. This poll tests your knowledge about a groundbreaking customer feedback innovation that transformed how airlines understand passenger needs.

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Singapore Airlines (1996)
British Airways (1998)
Emirates (2001)
Delta Air Lines (1994)