Which Statement About the Effect of Timing on the Relation

Which statement about the effect of timing on the relation between nature and nurture is true?

A) Nature only influences the nurture of human beings once they are born.
B) Nurture only influences the nature of human beings once they are born.
C) The effects of a particular kind of nurture depend on the nature of the child at the time of the experience.
D) A particular kind of nurture will generally exert its effect regardless of the nature of the child at the time of the experience.