Indian Polity · Polity

With reference to constitutional and statutory bodies in India, consider the following statements: I. The National Commission for Backward Classes (NCBC) derives its constitutional status from Article 338B inserted through the 102nd Constitutional Amendment Act. II. The National Human Rights Commission is a constitutional body. III. The Law Commission of India is a constitutional body. IV. The National Consumer Disputes Redressal Commission is a constitutional body. Which of the statements given above is/are correct?