How did working on a job on the railroad as a young man andrew carnegie become a success later in life? a.)it him see the increased need for steel. b.)it taught him how to lay railroad tracks with steel. c.)it him make enough money to start a business.

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.  

c. the passage of the fifteenth amendment

a was not the right answer