The enlightenment idea of separation of powers led to many things, but one of the most significant was the three branches of government in the United States.
Answer:
I believe this is D for foreshadowing.
A. Would make the most sense because if someone has a master plan then they will take whatever thrown at them to not cause anything to be ruined
"Today nobody brought his or her instrument" is correct. It is common for people to use "their" in a sentence like this, but "his or her" is the more proper term.
