Consider the following statements regarding the advisory jurisdiction of the Supreme Court: A. The reference for advice may be made to the Supreme Court on a question of law of fact by the President of India B. Disputes arising out of preconstitution treaties and agreements excluded from the original jurisdiction of the Supreme Court may also be referred to it. C. The advice given by the Supreme Court is binding on the government D. One of the cases referred to the Supreme Court for its advice was the constitutionally of the Kerala education Bill. Which of these are correct?