Which transportation company pioneered the first successful 'SkyMall' catalog concept for in-flight shopping in 1990?

The transportation industry has seen remarkable retail innovations that have transformed how people shop while on the move. From airport retail concepts to train station marketplaces, retail within transportation hubs has evolved dramatically over the decades. This trivia question tests your knowledge about a groundbreaking retail innovation that changed how travelers shop during their journeys.

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Robert Worsley's in-flight catalog venture (later acquired by Xhibit Corp)
Virgin Atlantic's 'Flying Store' initiative
American Airlines' 'Mile High Market'
United Airlines' 'CloudShop' program