The correct answer is option 4: 12. The Indian Constitution consists of 12 schedules. A schedule is essentially an annexure to the Constitution and contains additional provisions, classifications, and details for various matters. Each schedule deals with a specific topic or aspect. Some of the important schedules in the Indian Constitution include the First Schedule which lists the states and union territories, the Second Schedule which deals with the salaries and allowances of the President, Governors, etc., and the Seventh Schedule which divides the powers and responsibilities between the central government and the state governments. It is important to note that the number of schedules in the Indian Constitution can be amended by the Parliament if required.