Which is considered a key contribution of Mesopotamian civilization?

A.

the establishment of a monotheistic religion

B.

the development of a phonetic alphabet

C.

the invention of the wheel

D.

the cultivation of corn

Mesopotamia was not monotheistic but Polytheistic - Monotheism came only later.

It did develop an alphabet but not a phonetic one: it was a logographic and symbolic alphabet

wheel was indeed invented in Mesopotamia! - the correct answer is C!

And Corn was first cultivated in the New World.