C. Allowed Midwestern families to raise and maintain production
Explanation:
The reaper and steel plow made it accesible for small families to grow and harvest crops with their limited budget to be able to afford tools that made the harvest and plantation of crops easier by allowing them to break down the eart easier with less time of work, and to do the same at harvest, using the reaper to harvest crops on time.
The treaty of Versailles blamed the Germans for causing the war, even though it was the Austrians who started the war. The answer is that the allied powers blamed The Empire of Germany.