Piaget Argued That the Stages of Cognitive Development Were Biologically

Piaget argued that the stages of cognitive development were biologically predetermined and only minimally influenced by the environment or experience. He believed this idea because:

A) children around the world move through the stages in the same order and around the same ages.
B) children around the world still learn despite having different types of impoverished environments.
C) the brains of children develop exactly the same, at every age, all around the world.
D) he conducted experiments that proved cognitive development was a result of nature and had nothing to do with nurture.