Option a is the correct answer. Kabir was a 15th-century poet-saint who belonged to the Bhakti movement. He was a weaver by profession and a disciple of Ramananda. He was critical of the caste system, the ritualism, and the sectarianism of Hinduism and Islam. He preached the unity of God and the equality of all human beings. He composed many dohas (couplets) and padas (songs) in Hindi, which expressed his devotion to God and his social reform message. One of his famous dohas is: जातनिपूछोयापूकी, पूछतीजयैिज्जान। मोत्तकरोतरवारका, पठारहनदोम्‌यान।। Do not ask the sect or caste of a saint, ask about his knowledge. Value the sword, not the scabbard