The first mesoamerican civilizations began

~ right after people crossed the bering land bridge.
~ when nomadic hunters settled in the valley of mexico.
~ once people learned how to farm in the tropical forest.
~ when the maya built the first cities in central america.

The correct option is: C). Once People Learned How To Farm In The Tropical Forest.

Hope this helps!

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.