Answer:
Likely D
Explanation:
I got a 95% and this was one I had and I chose D. It's definitely not B or C because those aren't logical and are just guesses. A isn't completely logical because we know from history that having the most land doesn't guarantee victory.
They were near the Tigris and Euphrates River.
I've taken this test before lol, i think this is the answer. Sorry if its wrong :(