It's been a while since I've done social studies, but I believe the answer is B, he was crowned by the pope.
Answer: A) Climate
Explanation: Until the mid-20th century the largest impediment to trade between area "1" and area "2" on the map was climate. The Sahara Desert was a major impediment to trade. True, there were Trans-Saharan trade routes for centuries, but there is no denying that the desert was an inconvenience at the very least.
I think you forgot to give the options along with your question. I am answering the question based on my research and knowledge. "They shared similar marriage customs" is the one that <span>was a common theme shared by the Mayan and Aztec civilizations. I hope that the answer has come to your help.</span>
