How did the movement of the population into cities change American education?

Cities responded by paving streets, digging sewers, sanitizing water, constructing housing, and creating public transportation systems. Not only did urbanization cause cities to grow in population, but it also caused buildings to grow higher and larger.

Explanation:

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.  

d is the best answer for this question.