The correct option is B (b) I-d II-c; III-b; IV-a
In the ninth century Sankara started a Hindu revivalist movement giving a new orientation to Hinduism. His doctrine of Advaita or Monism was too abstract to appeal to the common man. In the twelfth century, Ramanuja, who was born at Sriperumbudur near modern Chennai, preached Visishtadvaita. According to him God is Sagunabrahman. In the thirteenth century, Madhava from Kannada region propagated Dvaita or dualism of Jivatma and Paramatma. According to his philosophy, the world is not an illusion but a reality. Nimbaka is known for propagating the Vaishnava Theology of Dvaitadvaita or dualistic “non-dualism”. It is also known as Bhedabheda philosophy