One Implication of the Research of Janet Lever and Carol

One implication of the research of Janet Lever and Carol Gilligan on gender differences in human development is that:

A) boys and girls learn to be equally competitive.
B) peer groups of boys and girls provide similar socialization.
C) girls learn morality in terms of responsibility to others.
D) peer groups do not contribute to gender socialization.
E) girls reason according to abstract principles.