B is the best answer. It gives the reader the context of the quote by stating the speaker and what is happening. It also has the quote which is more credible than just a word or two pulled out. Since it's just introducing this information, it also allows the writer of the essay to expand the idea with further explanation.
Answer:
How central ideas connect
Explanation:
The <em>magi</em> didn't, technically, <em>invent</em> anything. They were wise men or magicians and probably astrologers. Because astrologers watched the skies and could predict where the stars and planets would move to, they were considered to be able to foretell the future.