Bill Clinton was not the first
This was an edit
The Enlightenment philosophers influence the Founding Fathers of American government by providing the ideas of natural rights, government by consent, and separation of powers, which promote the greatest possible liberty for the people.
The answer to the question would be letter D.
Answer: The answer is the second one: "The Pax Romana was a period of peace and prosperity."
Explanation: The period of Pax Romana started on 27 B.C.E and ended on 180 C.E. In this long stretch of time, the Roman Empire witnessed economic prosperity and peace that spanned the entire empire.