Which of the following is not true for the Mississippi-Missouri River system? It is the greatest river system in North America.
Made exploration and transportation possible before roads and railroads were built.
Has a drainage basin which covers most of the central plain of the United States.
Became famous during the gold-rush days in Alaska.

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.  

imma have to go   the third option

sorry if i am wrong hope this

if i am right plz give me brainliest

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.