In 1890, the superintendent of the US Census announced that the American West had been settied to the point that there no long sa frontier lime in the United States. This came to be known as the closing of the frontier. How did the transcontinental railroad and homestead act contribute to this

b.   jim crow laws were enacted in northern states.

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.  

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