Occurs when the shoulder blades move toward the midline.
a. scapular depression
b. scapular protraction
c. scapular elevation
d. scapular retraction

A is the best answer for this question.

Explanation:

scapular depression.

another answer from our community: let us first explain the meaning of "eternal truth" which is tomean, continuing forever or indefinitely. this being the case itcannot be changed, for truth is truth no matter what changes aremade to the structure of its explanation. however, as for religeons changin… (more)

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.