Question

This statement best supports which of the following conclusions about how Islams spread?
A. It spread throughout Europe and Asia by trade.
B. It spread across North Africa through military conquest
C. It spread around the world as a result of Islamic missionaries
D. It spread across the Arabian Peninsula as a result of Muhammad's travels

Answer 1

"At length on April 5th (1326) we reached Alexandria. It is a beautiful city, well-built and fortified with four gates and a magnificent port. Among all the ports in the world I have seen none to equal it except Kawlam (Quilon) and Calicut in India, the port of the infidels (Genoese) at Sudaq (Sudak, in the Crimea) in the land of the Turks, and the port of Zaytun (Canton?) in China, all of which will be described later."
—Ibn Battuta, Travels in Asia and Africa 1325-1354, tr. and ed. H. A. R. ...

Answer 2

B is factually true: Muslim arimes under the Rashidun Caliphate conquered the Middle East, North Africa, and Persia and bits further East, and parts of Anatolia between 632 AD (when Muhammed died) and roughly 660 AD.

But I don't quite see how this statement supports any of the options, since, first, it's made approximately 500 years *after* the Muslim conquest, and it says zippity zap about the nature of Alexandria. I guess the guy was Islamic and traveling in North Africa, which is where Alexandria is, for what that's worth.