Xavier Is Doing a Research Study Investigating the Moral Decision

Xavier is doing a research study investigating the moral decision making of people at various ages.He wants to know if older adults see moral issues differently than they would have when they were children,so he gives his research subjects a moral dilemma and asks them to discuss the various moral issues involved.He then asks them to imagine how they would have answered the same question when they were adolescents.Xavier's research addresses which major issue of developmental psychology?

A) Stability/Change
B) Nature/Nurture
C) Plasticity/Formidity
D) Continuity/Stages