The war started because of militarism,Alliances,imperialism and Nationalism
So, to find out what IS a cause of the war we need to know M.A.I.N. That means Militarism, alliances, imperialism, and nationalism. That would mean the choices that aren't causes are totalitarianism, defense, and industrialism.
1639
Is the correct answer
For this question, Checks and Balances seems to be the best answer.
The Senate is making sure that the President is kept in check.
I hope this helps! :)
The bland Allison-act tried to meet the demands of the farmer in the late 1800's when farmers demanded an increase in money supply through the influx of silver