A Economy is the answer. put me as brainiest!!!!!!
It was a trigger that showed that there were two competing powers in Europe: Russia and Austria-Hungary (and their allies).
Franz Ferdinand was killed by a Serbian separatist and the Austrians wanted him to be punished. On the other hand, Russia supported Serbia is saying that Austrian demands ( to be allowed to search for the culprit inside Serbia) were too much.
This lead to a direct conflict between the two powers (Austria and Russia) and further lead to the war.
D - he used Chinese advisors to improve his rule.
US government's authority comes from the consent of the people it governs.Governments are instituted among men,deriving their just powers from the consent of the governed.