Which of the Following Statements Is Most Accurate with Regard

Which of the following statements is most accurate with regard to Piaget's theory?

A) Piaget firmly believed that children who were at a particular stage of cognitive development had the same level of understanding in all areas,such as understanding causality,morality,agency,etc.
B) Piaget believed that children's progress through the stages could vary.For example,very intelligent children could skip a stage.
C) Piaget believed in the dynamic quality of stages and understood that children in the same stage could vary greatly in their specific understanding of causality,morality,and so forth.
D) Piaget believed that children could vary in their understanding of morality but that their understanding of causality was the same for all children within a particular stage