The correct answer is: A. 73rd
The 73rd Amendment to the Indian Constitution, enacted in 1992, provides for the establishment of Panchayati Raj Institutions (PRIs) at the village, intermediate and district levels. The amendment also provides for the devolution of powers and responsibilities to these institutions.
The 73rd Amendment was a landmark step in the decentralization of power in India. It has led to the establishment of PRIs in all states and union territories of the country. These institutions have played a significant role in the development of rural areas and in the empowerment of women and other marginalized groups.
The 73rd Amendment has also been instrumental in the promotion of democracy and good governance at the local level. It has helped to bring about a greater sense of participation and accountability among the people.
The 73rd Amendment is a major achievement of the Indian democracy. It has helped to strengthen the foundations of democracy at the grassroots level. The amendment has also made a significant contribution to the development of rural areas and to the empowerment of women and other marginalized groups.
The other options are incorrect because they are not the amendments that provide for the establishment of Panchayati Raj Institutions.