Which of the Following Is a Key Difference Between the Food-Producing

Which of the following is a key difference between the food-producing traditions of Mesopotamia and Mesoamerica that helps us understand the subsequent histories in the two regions?

A) Food production occurred as a gradual process in Mesoamerica but was revolutionary in Mesopotamia.
B) Large domesticated animals played an important role in Mesopotamia but were absent from Mesoamerica.
C) In Mesoamerica, goats, sheep, and pigs were domesticated, but in Mesopotamia only dogs were domesticated.
D) Food production emerged in Mesoamerica thousands of years prior to when it did in Mesopotamia.
E) Maize was the staple grain in Mesopotamia, whereas the primary grain in Mesoamerica was wheat.