The main reason many american indian groups moved west was to
avoid the encroachment of spanish settlers,
escape the imposed system of repartimiento,
find more fertile land and better weather for planting,
find larger pieces of land for their growing population,

The answer is find larger pieces of land for their growing population

Explanation:  Native Americans want a better way of living, so they move west, looking for more land and better conditions for their families, as well as for those who grow up.

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.