Correct option is D
The Election Commission of India (ECI) is responsible for conducting elections to:
Lok Sabha (House of the People),
Rajya Sabha (Council of States),
State Legislative Assemblies,
State Legislative Councils, and
President and Vice-President of India.
However, the Election Commission does not supervise Panchayat elections. Panchayat and Municipal elections are conducted by the State Election Commissions, which are separate constitutional bodies established under Article 243K and Article 243ZA of the Indian Constitution.
Preparing the electoral rolls: This is one of the primary responsibilities of the Election Commission of India.
Setting up polling booths: The ECI is responsible for ensuring that polling booths are set up to facilitate voting during general and state elections.
Implementing the model code of conduct: The ECI ensures that the Model Code of Conduct is followed by political parties and candidates during elections to maintain fair and free elections.