There wouldn't be a USA, and...
the Indians would still have pretty much all of the Middle-west of the USA.
Hawaii would still be under their kings/queens
Alaska would still be part of russia
China would pretty much never had any technological progress (they isolated themselves)
Japan would still be going around with pretty much katanas.
etc etc
if you want more i can give you more (if you want information on why one is on the list, post it in the comments)
hope this helps
Answer:
d. dividing government powers would prevent an abuse of power.
I think the correct answer is B.) it revolutionized production resulting in economic growth.
Rapid growth in population and domestication created more complex religious beliefs and divisions in social class and these were the new cultural changes. This created division among people and the creation of economically strong and weak groups. I hope the answer helps you.