Which theory best describes the spread of maize as a staple crop through


the Native American populations?

AMaize was fi rst developed upon the Siberian Steppes and carried to

the Americas via the land bridge.

BMaize was developed in South America and slowly spread throughout

the rest of the Americas via pre-Columbian trade routes.

CMaize was developed by the nomadic tribes of North America but

was fi rst grown intensively as a staple crop by Native American


groups in Central and South America.

DThe cultivation of maize occurred separately in isolated pockets

throughout the two continents.

EMaize was fi rst developed in the region that is now Mexico and

spread through the Americas in a slow and uneven process.