With Regard to Child Rearing,the !Kung of the Kalahari Desert

With regard to child rearing,the !Kung of the Kalahari Desert are unique in that:

A) children learn that aggressive behavior is tolerated only by women
B) both men and women engage in child care
C) !Kung do not have specific sex roles
D) men are the primary caregivers of children
E) both boys and girls learn to be independent at a very young age.