Correct option is A
The Constitution of India originally contained **12 Schedules**. These Schedules are essentially tables attached to the Constitution that detail everything from the allocation of powers and duties to the Union and State governments, to the languages recognized by the Constitution, and provisions for the administration of tribal areas, among other things. Over time, the Constitution has been amended, but the number of Schedules has remained twelve. These Schedules play a critical role in the detailed application of the Constitution's provisions, helping to clarify and implement the legislative and administrative powers.