The first formal laboratory for research in psychological was established in<span>1879 by Wilhelm Wundt at the </span>University of Leipzig.This is the first breakthrough of this branch of science that tries to define a scientific approach to explain the behavior and thinking of human.
<span>From this link
https://www.adamsmith.org/the-wealth-of-nations/
it reads : "</span><span>For all these reasons, Smith believes that government itself must be limited. Its core functions are maintaining defence, keeping order, building infrastructure and promoting education"
</span><span>
So the answer in a short and simple way is:
maintaining defence, keeping order, building infrastructure</span>
Answer:
the answer is D. a rejection of socialist movement in Paris during the 1920s