What do the colonists
declare at the end of the Declaration of
che Independence?

They solemnly declared "That these United Colonies are, and of Right ought to be, FREE AND INDEPENDENT STATES," possessing "the full Power to levy War, conclude Peace, contract Alliances, establish Commerce, and to do all other Acts and Things which INDEPENDENT STATES may of right do."

Explanation:

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.  

by 1880, germany had more rail lines than great britain and russia.