I think it's D because "Causation" is <span>the action of causing something.</span>
Answer:
Constitutional
Explanation:
Plessy v. Ferguson was widely talked about the case in the United States. It occurred in the year 1896.
in the ruling, the United States of America's Supreme Court ruled in favor and upheld the CONSTITUTIONALITY of Louisiana state law that supports equal but separate settlements for the white and colored races.
Hence, during Plessy V. Ferguson. The supreme court ruled that the doctrine of separate but equal was CONSTITUTIONAL
