With reference to India, consider the following : I. The Inter-State Council II. The National Security Council III. Zonal Councils How many of the above were established as per the provisions of the Constitution of India?

Option (A) is correct because only the Inter-State Council is a constitutional body, established under Article 263 of the Constitution of India. Zonal Councils are the most common source of confusion, but they are statutory bodies created by the States Reorganisation Act of 1956, while the National Security Council is an executive body. The core concept tested is the distinction between constitutional, statutory, and executive institutions.