This essay is pretty good.
It would be C. No conscription: German forces limited to 100000 men. After the Treaty of Versailles the armed forces of Germany was reduced in order to avoid future conflicts but instead to prevent another world war it becomes one of the reason of bitterness of the German people that was one of major causes of World War 2 and paved way to the Nazi Germany of Adolf Hitler.
B. unsanitary conditions in the meat packing business
The President is responsible for implementing and enforcing the laws written by Congress and, to that end, appoints the heads of the federal agencies, including the Cabinet. The Vice President is also part of the Executive Branch, ready to assume the Presidency should the need arise.
