Correct Answer: (c) The British North-American Act
Solution:The concept of" A union of States" in the Indian constitution has been derived from the British North American Act, 1867 (The Constitution of Canada). According to Article 1(1) of the Indian constitution, "India that is Bharat, shall be a Union of states". According to 'Constituent Assembly Debates' vol. VII, "The Drafting Committee considers that following the language of the British North America Act, 1867, it would not be appropriate to describe India as a Union although its constitution may be federal in structure.