The answer to this is A. Chautauqua Circuit.
<span> René Descartes</span> was the leader of the Scientific Revolution in France, which developed the mathematical system of Cartesian coordinates.
An incumbent is a current officeholder, running for re-election.
Figurative is something that shouldn't be taking literally. For example, when you say "I have a ton of homework" you don't really mean you have 2000 pounds of homework.
