Answer:
Classical: "relating to ancient Greek or Latin literature, art, or culture." Wikipedia. Classical is basically the study of other cultures. This was a very prominent idea in the Renaissance because of the new theory of humanism.
John Locke, English philosopher and physician, known as "father of Liberalism"
Conquistadors.
It's a complicated combo of better weapons,, and diseases.
I would go with B. Authority is based on respect and precedence, but they don't actually have the power to use it.