A teacher says to her class, "As individual assignments are designed to help individual students learn more effectively, all students should complete assignments prescribed without any assistance, she is referring to which of the following stages of Kohlberg's moral development? [CTET-Feb.-2014-I]

• A. Conventional stage 4 - law and order
• B. Post-conventional stage 5 - social contract
• C. Pre-conventional stage 1 - punishment avoidance
• D. Pre-conventional stage 2 - individualism and exchange