The correct option is C Nimbarka : Advaita
Ramanujacharya who born in Sriperumbudur founded the Visistadvaita Siddhanta or qualified monism. Madhavacharya propounded the school of Dvaita or Dualism. Vallabhacharya, born in Varanasi, initiated the Sudhadvaita Vedanta or Pure non-Dualism. But the philosophy of Advaita Vedanta or Strict Monism was propounded by Sri Sankaracharya born in Kaladi, Kerala. So the wrongly matched pair is C.