The answer would be D.
D. Wealth of Knowledge-so much information was brought back from the Muslim "world"; information pertaining to medical knowledge, new forms of mathematics and education, "Aristotle was brought back," and "everything was brought back"; so many new ideas were brought back to Europe from the Muslim "world".
What is your question? it was Katv v. Us is that what you mean?
Answer: B. The South
Explanation: Got it right on Edge
9 goes first then 7 then 8