Which is not a means of making rational economic choices? o measuring production levels
O analyzing marginal costs and benefits
O assessing opportunity costs
O considering utility

measuring production levels

Explanation:

Economic rational choices refers to a scientific frameworks that a person or  a group can use in order to fulfill all of their  interests and needs. The means are the things that we can use before we make those rational choices

To make a rational economic choices, there are several steps that generally need to be followed:

Understanding what want to be achieved - analyzing the resources that we possess to achieve it - formulating potential plans - assessing cost and benefit of our action - choosing the best plans.

Measuring production levels is an activity that we do after the plan is already executed. Is not something that we do before we make the choice.

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.