The correct option is A Sri Narayana Dharma Paripalana Yogam
Disturbed by the terrible caste tyranny, Narayana Guru decided to bring a change for the betterment of the oppressed people in Kerala. He set up the Sri Narayana Dharma Paripalana Yogam, an organization to work for the upliftment of the depressed classes. He even established a grand temple at Aruvippuram, where people from lower class could enter and worship.