Which of the following most contributed to the rise of Sumer?

A)agriculture
B)trade
C)military conquest
D)monotheism

Is the answer B? Please help, I'm not sure.

7 answers

Your answer may be right in the later days of Sumer. However, I think there's a better answer. What had to come before the Sumerians could engage in much trade? Please check your text and this article.

http://www.seal-pa.org/ms/staff/dlongwell/Shared%20Documents/Mesopotamia/The%20Rise%20of%20Sumer.pdf
Thanks. (=
You're welcome.
OK so what is the answer... i am not clicking on that cite cause of viruses sooo ya :\
oops something happened lol XD
military conquest
The link doesn't work anymore..