Why was the cause of the collapse of the Mayan civilization a mystery for so long?
A
The Mayans lived in a remote region of the world that was hard to research.B
Mayans performed “air funerals” where birds ate their dead, leaving little to research.C
Mayan culture had no artifacts or writing for historians or anthropologists to study.D
The changes caused by the Mayans were reversed over time, gone by the modern era.