With reference to the Chief Election Commissioner and Other Election Commissioners (Appointment, Conditions of Service and Term of Office) Act, 2023, who among the following heads the selection committee for the appointment of the CEC and ECs?

1. AA committee headed by the Chief Justice of India
2. BA selection committee chaired by the Prime Minister
3. CThe President of India on the sole recommendation of the Union Cabinet
4. DA collegium of the five senior-most Supreme Court judges