Lawrence Kohlberg's theories of moral reasoning are criticized for many things. With reference to this criticism, which of the following statements is correct?

• A. Kohlberg has based his study primarily on samples of men.
• B. Kohlberg has not given a specific answer for each stage of moral reasoning.
• C. To arrive at his theoretical framework, Kohlberg has repeated Piaget's theories.
• D. Kohlberg's theories do not focus on children's responses.