I believe the answer is C. It would have the most economic effect.
Answer:
what? i do not speak espanol
Explanation:
3 ways the industrial revolution changed America/
1. Caused more jobs all over America
2. Population shift- moving from rural agricultural to work in factories in cities
3. The rise of steam power, example: railways and steam powered machines
4. Mass production of goods, increased efficiency, reduced average costs and enabled more to be produced.