Enlightenment thinkers used logic and reason to solve problems. People who used enlightenment thinking seem the logic and reason in church and state being separated as well as the leadership of them.
The best answer to this question would be (b.) The Marshall Plan. After World War II, the United States offered assistance to war-torn European nations through the Marshall Plan. The Marshall Plan was the aid to the Western European countries to rebuild their economic stability. This was funded by the government of the United States.
It's B. America is not going to restore the Taliban to leadership.
One real life example of the separation of powers in the US government would be that the President of the United States has the power to veto legislation passed by the Legislature.