Lawrence Kohlberg Modified and Expanded Piaget's Work, Laying the Groundwork

Lawrence Kohlberg modified and expanded Piaget's work, laying the groundwork for modern studies on moral development. On which of the following tenets did the two disagree?

A) that children under 12 years of age could develop moral values
B) that children form ways of thinking through their experiences
C) that the process of moral maturity took longer than 12 years
D) that children under 12 years of age could understand moral concepts
E) that all moral values are determined at birth