How did George Westinghouse contribute to railroad transportation?(1 point)
Responses
His invention of the steam engine made railroad travel faster and more affordable.
His invention of the steam engine made railroad travel faster and more affordable.
His invention of air brakes made railroad travel safer and faster.
His invention of air brakes made railroad travel safer and faster.
His development of the sleeping car made railroad travel much more comfortable.
His development of the sleeping car made railroad travel much more comfortable.