The US Supreme Court in 1873 Consolidated Several Cases, Commonly Known

The U.S. Supreme Court in 1873 consolidated several cases, commonly known as The Slaughterhouse Cases, into one ruling. What was the impact of the ruling on the Fourteenth Amendment?

A) The case strengthened the Fourteenth Amendment's protections and advanced the cause of civil rights for African Americans.
B) The justices ruled that the Fourteenth Amendment was unconstitutional.
C) The justices ruled that Congress had overstepped its authority in its initial passage of the Fourteenth Amendment and in the freeing of slaves in southern states.
D) The ruling declared that the great body of civil rights still lay under the protection of the state governments, not the U.S. Constitution.
E) The case gave the Congress all powers to decide the level and reach of civil rights in the United States.