The answer is Supply and Demand, whatever people want to eat more of is what restaurants and other stores will make and sell. So, I think the correct answer would be "B".
What best describes how the Arab Empire unified regions of North Africa and the Middle East?
<u>The Arab Empire unified feuding tribes under the religion of Islam.</u>
~Hope this answers your question!~
I believe the answer your looking for is B. Slaves
Hope this helped
B. The Edict of Milan helped spread Christianity by allowing all religions in Rome.