• How has oil made the people of Southwest Asia better off?

Oil money has improved the lives of people in Southwest Asia in the last 30 years. Life expectancy has increased and the number of deaths in infants have decreased. ... One goal is to have a steady supply of oil flowing out and money flowing in.

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.  

they believed democracy was worth the fight