Which of the following are the basic features of Constitution (73 Amendment) Act?
1. Provides for a 3-tier structure of Panchayats in the village, intermediary and district levels.
2. Reservation of seats for Scheduled Castes and Scheduled Tribes and women in all the tiers of Panchayats.
3. Election of Panchayats under the supervision of state election commissions.
4. Introduction of the 11 schedule of the constitution.
Select the correct answer using the codes given below: