SUFFIX meaning: a letter or a group of letters that is added to the end of a word to change its meaning or to form a different word.
Answer:
European intellectual movement of the late 17th and 18th centuries emphasizing reason and individualism rather than tradition. It was heavily influenced by 17th-century philosophers such as Descartes, Locke, and Newton, and its prominent exponents include Kant, Goethe, Voltaire, Rousseau, and Adam Smith.
did you mean main idea?
the main idea is the central, or most important, idea in a paragraph or passage.
I think it's option A, or number 2
All the answers are on here