Which article of the Indian Constitution provides for the institution of Panchayati Raj?

Which article of the Indian Constitution provides for the institution of Panchayati Raj? [SSC CHSL (10 +2) DEO & LDC Exam 16/11/2014, Shift I] and [SSC CHSL (10 +2) Level DEO & LDC Exam 10/11/200013, Shift I] and [SSC Section Officer (Audit) Exam 10/12/2006]

          a) Article 36

          b) Article 39

          c) Article 40

          d) Article 48