Aristotle believed that man could achieve happiness by working on and developing the things unique to his nature, which he specifically believed to be thought and reason. Humans, at least in the time of Aristotle, were the only things capable of complex thought.
It was a chain reaction. Long story short, the countries were pulled into the war because of agreements they had with their allies. This treaty is what caused the countries to enter WWI, to protect and defend their allied countries who were already in the war.
Answer:
2, it's the best option out of all of them. If I had a choice though I would say 8 is the best.
