Answer:
D) a nation is better off when it produces goods and services that it has
a comparative advantage in producing.
Explanation:
Comparative advantage refers to the ability of a country to produce goods and services at a lower opportunity cost than other competitors.
Answer:
Provide serves to the king, D is the answer
For question 4 answer is checks and balances
In regard to slavery, the 13th Amendment was made and it abolished slavery and involuntary servitude. This was in 1864-65.