Which of these has NOT been put forward as a criticism of Kohlberg's theory?

Question

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Kohlberg's theory has been criticized for being biased towards males (B), not accounting for cross-cultural factors (C), and for the possibility that the stories he used could be interpreted differently by different age groups (D). However, the criticism that he used a cross-sectional design is not accurate; his research was longitudinal, following the development of moral reasoning over time in the same individuals.

Which of These Has NOT Been Put Forward as a Criticism