The correct option is D Moovalur Ramamirdham
The Devadasi system was the practice where a girl dedicated to the service of God in a temple. This in time became a humiliating practice and further deteriorated the status of women. Many reformers like Moovalur Ramamirdham, Periyar E.V.R and Dr. Muthulakshmi Ammaiyar advocated against it and helped abolish it completely.
Raja Rammohan Roy was instrumental in the abolishing of Sati.