How did the arrival of european settlers change life for indigenous people on the plains?
a
the arrival of settlers had no impact on the lives of indigenous people in the plains region.
b
settlers killed nearly all the buffalo and most indigenous people were moved to reservations.
c
the settlers and native americans used horses to hunt buffalo more effectively and carefully managing the resources.
d
settlers and the indigenous people of the plains shared ideas and ways of doing things, continuing to always occupy the same land.

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.  

answer; taking up arms to defend the nation;