Question

Problems after World War I. This was one of the most important

Answer 1

Answer:

Sorry that I'm late for this, but the answer is D. economic

Explanation:

This is because Russia ran out of supplies during ww1 mainly due to the Brusilov Offensive. Russia running out of supplies has therefore led to the lower/middle class getting angry and started the Russian Revolution. Also, The Treaty of Versailles has messed up the German economy because they had to pay for war damages and limit their military. This led to Germany printing more money leading to hyperinflation. Again, sorry that I was late