Which transportation company's CEO first published the Hyperloop Alpha concept paper in 2013, proposing a high-speed transportation system using sealed tubes with low air pressure?

The transportation industry has seen numerous revolutionary concepts in recent decades, but few have captured the imagination like the Hyperloop. This high-speed transportation system promises to transform how we travel between cities. Test your knowledge about this cutting-edge transportation innovation that could reshape our future mobility landscape.

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

Tesla and SpaceX (Elon Musk)
Virgin Group (Richard Branson)
Uber Technologies (Dara Khosrowshahi)
Bombardier Transportation (Éric Martel)