The correct option is C Bramho Samaj
The Prarthana Samaj is one of the prominent reform movement in western India which was founded in 1867 by Dr. Atmaram Pandurang, Mohadev Govind Ranade and Ramakrishna Bhandarkar against the caste system and the practice of untouchability. The leader of the Prathana Samaj were influenced by the Brahmo samaj. They worked for improving the status of women and advocated window remarriage.