What happen in oaxaca around 4250b. c A. the ice age had ended
B. people were using wheels on their cart
C. Hunter- gathers were practicing religion
D. people begain growing corn

D: people began growing corn

Explanation:

Scientists believe in central mexico corn was developed at least 7000 years ago

it was important in history as the site of the ancient city of yin

hope this

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.