Which transportation company first launched an electric bus capable of traveling over 300 miles on a single charge in commercial service?

The transportation industry has been rapidly evolving with electric vehicles leading the charge toward sustainability. Electric buses in particular have seen remarkable advancements in recent years, with manufacturers competing to overcome range limitations, charging infrastructure challenges, and battery technology constraints. This trivia question focuses on a recent product innovation milestone in the electric bus sector that changed the industry landscape.

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Proterra with its ZX5 Max model
BYD with its K9 model
New Flyer with its Xcelsior CHARGE XR model
Volvo with its 7900 Electric model