Which of the following are voluntary provisions in the 73rd Constitutional Amendment Act (1992)?

1. Minimum Age of 21 for contesting elections to Panchayats.

2. Indirect elections to the post of Chairperson Panchayats at the intermediate and district levels.

3. Representation of Members of Parliament and State Legislature on Panchayati Raj institutions 

4. Reservation of seats for backward classes 

Select the correct answer from the code given below

Codes