<span>The Slaughterhouse Cases, resolved by the U.S. Supreme Court in 1873, ruled
that a citizen's "privileges and immunities," as protected by the
Constitution's Fourteenth Amendment against the states, were limited to
those spelled out in the Constitution and did not include many rights
given by the individual states.</span>
Answer:
a
Explanation:
look it up. it's on wikipeadia
D) Animal & human power were generally replaced with steam power.