How did the assassination of archduke franz ferdinand lead to world war i?
it allowed russia to ally with serbia and declare war on germany.
it ended possible peace talks between serbia and austria-hungary.
bismarck's scheme of secret alliances against serbia provoked the assassination and then the war.
alliances forced many countries to go to war either in support of austria-hungary or serbia.

I think it is A hope this helped I got a 100 on the test so good luck on the test :)!.!.!.!

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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.