How did the Plessy v. Ferguson and Brown v. Board of Education Supreme Court rulings reflect the
Court's changing interpretation of the equal protection clause of the Fourteenth Amendment?

So the answer is: The court decided to stop segragating the schools because it was unfair and did not line up with the 14th admendment.

Explanation:

it did not pass the law of 14th admendment.

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.

the answer is a. monarch