The Hopewell people had built mounds throughout the Eastern/Southern part of the U.S. and part of Canada so I don’t believe that there’s one specific state where they are all located in but what I can tell you is that the Great Serpent Mound is located in present day Ohio.
Answer:
A,B,D
Explanation:
I know A and B are correct, and I'm pretty sure D is too.
It does not apply to executive orders.
The answer is drought in the midwest