The correct option is B Satya Shodhak Mandal
Satya Shodak Samaj was a social reform society founded by Jyotibha Phule in Pune, Maharashtra, on 24 September 1873. The education, access to social rights and civil liberties for people of lower castes, underprivileged and women were the major aims of the society. It rejected the caste based and religious exploitation.