How did an armed force of english colonists led by george washington start a european war?
a. they took over the strong french fort at louisbourg.
b. they attacked the colonists in the spanish colony of florida
c. they attacked and took over the city of montreal in canada
d. they tried to drive the french out of the ohio river valley

the answer is: D. They tried to drive the French out of the Ohio River valley.

That river valley was connected to the Mississippi river. Which means that any country that control that river would have a strategic location that helped them in delivering their goods to american continent through water routes.

Washington's action heavily damaged the French's economy, so the French army water to retaliate against Washington. In the end, his action lead to a European War between great Britain (who backed Washington) and the French empire.

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.