Who among the following propounded " ‘One Caste, One Religion, One God for all men’.?

Sri Narayana Guru

The correct answer is O[ption 1: Sri Narayana Guru

Sri Narayana Guru, born in Kerala, preached brother-hood for all and fought against the ill effects of the caste system. He led a quiet but significant social revolution and gave the watchwords ‘One Caste, One Religion, One God for all men’