According to cognitive explanations of gender development (including Kohlberg's theory and gender schema theory), which two of the following statements A, B, C, D and E are correct? Write the two correct letters in your answer book.

A According to Kohlberg, gender stability is the stage where children realise that gender remains constant across time but can change with appearance or activity. B Gender schema theory proposes that children only begin to show gender-typed preferences after they have reached Kohlberg's stage of gender constancy. C According to Kohlberg, a child first develops gender constancy, followed by gender stability, and finally gender identity. D Gender schemas are cognitive frameworks that help children organise and interpret information about gender. E Cognitive explanations suggest that gender development is driven solely by unconscious biological drives and psychosexual conflict.