What statement best explains how Greek and Roman learning was preserved during the Middle Ages in Europe?

• A. monasteries saw it as their mission to copy all of the older texts of the greek and roman philosophers.
• B. the works of greek and roman philosophers were preserved by both the byzantine and the islamic civilizations.
• C. the roman catholic church maintained extensive libraries of greek and roman works throughout europe.
• D. the collapse in western europe was not so great as to cause a shutdown of universities at the major population centers..