The constitution
a. contains a long list of enumerated powers for the statesb. leaves open the question of when national or state powers predominatec. says very little about state powerd. clearly spells out that state governments have more power than the federal governmente. leaves little opportunity for the supreme court to decide national-state power disputes

Letter C is the correct answer.

The U.S Constitution is the supreme law of our nation. The Constitution of the United States was created in 1787 and ratified in 1789. Its main goal was to establish the basic rights of its citizens. The constitution created a government that consists of 3 branches (legislative, executive and judiciary), established a system of checks and balances, and divided the power between the federal government and the 50 states. However, it says very little about state power. Many people believe that the states should have more powers to decide on taxes, the economy, and moral decisions.  

the magna carta is a peace treaty between the king and the rebels. it was made because the the barons captured london in may 1215, so the king was forced to make a treaty with them.the document is written in latin.

hope this and plz mark as brainliest!

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.