How has the acquisition of sustenance (food) evolved in societies

Which of the following led to a continuation of the treatment in the excerpt above? a)the brutality of the trans-atlantic african slave trade. b)spanish repression after violent native uprisings in new spain during the 16th century. c)european competition to quickly establish colonial holdings in the new world. d)the reliance of the spanish on native americans to provide labor under the encomienda system.

4. any area in which one nation has power over another; i.e. - this happened to china when it was defeated by japan

Reformers worked to change schools by making them more: