The US Supreme Court Ruled in the Slaughterhouse Cases That

The U.S. Supreme Court ruled in the Slaughterhouse Cases that

A) most rights of citizens were under the control of state governments rather than the federal government.
B) states could not interfere with vigorous federal enforcement of a broad array of civil rights guaranteed by the Fourteenth Amendment.
C) the federal government had sole authority under the Commerce Clause to regulate the meatpacking industry.
D) voting rights of African-Americans under the Fifteenth Amendment could not be abridged or denied by any state.
E) Reconstruction had progressed too far and was now officially ended.