A Originating strictly within the individual's biology and then being expressed socially without external influence.
B Occurring in a vacuum where culture plays no role in the formation of concepts or language acquisition.
C Moving from the social (interpsychological) plane to the individual (intrapsychological) plane through the process of internalization.
D Depending solely on the memorization of vocabulary lists provided by the teacher, regardless of social context.
E Developing in reverse order, starting from the individual consciousness and then moving to the social environment.