How did Thomas Edison's innovations in electricity most significantly affect people? A.They encouraged urban factories to increase wages. B.They sped up the refinement of oil, iron, and other resources.

How did Thomas Edison's innovations in electricity most significantly affect people?

A.They encouraged urban factories to increase wages. B.They sped up the refinement of oil, iron, and other resources. C.They changed the environments in which people lived and worked. D.They made travel less expensive by lowering railroads' operating costs.

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