D. The reason for the fall of the Maya civilization is still unknown. There are many different theories attempting to explain the cause of the Classic Maya collapse and the abandonment of Maya cities in the southern Maya lowlands of Mesoamerica between the 8th and 9th centuries: climate change, drought, deforestation, etc. but although the drought is the leading theory at the moment the truth is yet unknown.
Explanation:
Along these trade routes, merchant communities developed. Muslims controlled parts of the western silk road and were influential on trans-Saharan trade routes. They also were powerful entities in maritime trade in the Red Sea, Persian Gulf, and Indian Ocean.
Answer:
I'm pretty sure the first one but don't know for sure.
States the conditions of an agreement
