Consider the following statements with regard to the doctrine of the basic structure of the Constitution. 1. Amendment procedure is unamendable. 2. Rights and freedoms, unless incorporated in the Constitution, do form part of the basic structures. 3. Any clause which is a part of the Constitution constitutes its basic structure. 4. The courts, especially the Supreme Court, knows what constitutes the basic structure of the Constitution. Select the code giving the correct statements

• A. 1, 2, 3     
• B. 1, 2, 4
• C. 1, 3, 4     
• D. 2, 3, 4