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D is the answer it prevented the creation big business combining to make monopolies
Answer:
Banks needed a source of emergency reserves to prevent the panics and resulting runs from driving them out of business. A particularly severe panic in 1907 resulted in bank runs that wreaked havoc on the fragile banking system and ultimately led Congress in 1913 to write the Federal Reserve Act.
<span>Plessy v. Ferguson, 163 US 537 (1896) was a landmark constitutional law case of the US Supreme Court decided in 1896. It upheld state racial segregation laws for public facilities under the doctrine of "separate but equal".</span>