The main cause of the rise of caudillos in Mexico was wide-spread political disorder and a lack of a sufficient power structure following revolutions, since these military leaders used this lack of order to seize power.
A. they became more expensive because they used technology
The transfer of plants, animals, people, and diseases between hemispheres. This would be the correct answer!!!
As president Andrew Jackson sent them away, leading to the trail of tears to gain the land. they were better off in Indian territory because the land was then his to control.
