THIS IS 100% correct! *change is an underlying theme to understanding expansion and encounters through history.* I got this wrong on Odyssey ware by listening to everyone else, came back to prevent this from happening again.
Answer: A. Jean-Jacques Rousseau :)
Answer:
What replaces steam? What new power source was developed in the late 1800s? In the late 1800s, a new power source—electricity—replaced steam as the dominant source of industrial power.