The correct option is D He advocated multiple idol worship.
Kabirdas was a student of Ramanand not Ramanuja. He condemned the caste system and multiple idol worship, and declared that God is one, and he is the same for both Hindus and Muslims. Kabir had a lot of followers and they are known as Kabirpanthis. Kabirpanthis are those who follow the path of Kabir.