B. Sacrifice isn't necessary to achieve group goals.
The second question is false, because we have federal, state, and local law.
Answer:
The end of the First World War in 1918 was a time of great social and economic transition that led directly to what made the 1920's “The Roaring Twenties.” ... Technological advancements, urbanization, and immigration led directly to the social upheavals of the 1920s.
