Consider the following organizations/bodies in India:
1. The National Commission for Backward Classes
2. The National Human Rights Commission
3. The National Law Commission
4. The National Consumer Disputes Redressal Commission

How many of the above are constitutional bodies?

Correct Option: Only one

Among the listed bodies, only the National Commission for Backward Classes (NCBC) is a constitutional body (added via the 102nd Constitutional Amendment Act under Article 338B). The NHRC, Law Commission, and National Consumer Disputes Redressal Commission are statutory bodies created by Acts of Parliament.