The correct answer is letter A
The reform of the United States Constitution, exemplifying the famous case Plessy v. Ferguson where an 1890 Louisiana law was questioned that required accommodations equal for whites and blacks, but in separate parts of the same train. The Supreme Court understood that such a requirement was reasonable and did not violate the fourteenth amendment, since what that law was to promote public interest, public peace and good order, not to oppress a specific class.
