Actually every single one is correct, A<B<C they all are factors in the decline of Sumer.
Answer:
Advanced cities
Explanation:
It's not necessary to have an advanced city; because not all civilizations have to be large
Hope this helps! :D
An oligarchy describes C. "rule by a small group". The size of this group can vary greatly but it relative to the size of the population its controlling and usually results and unfair governance.
They know a lot more and are updated and have a lot more knowledge and technology.
It would be the "Interstate Clause" that does not support the authority of
<span>the national government, since this is simply the "Commerce Clause". The interstate aspect did not occur until later. </span>
