Who gave the call “one religion, one caste and one God for mankind”?

Q. Who gave the call “one religion, one caste and one God for mankind”?

(a) Vivekananda

(b) Sri Narayan Guru

(c) Ram Mohan Roy

(d) Dayananda Saraswati

Ans: (b) Sri Narayan Guru

Explanation: Sri Narayana Guru preached the doctrine of ‘One caste, One religion, One God.’ Its worth note that one of his atheist disciples, Sahadaran Ayyapan, changed that into ‘no religion, no caste and no God for mankind’.