The correct answer is C) Ayyankali.
Ayyankali was a social reformer and leader of the Dalit community in Kerala, India. He is best known for his role in the Paliyam Satyagraha, a non-violent protest against social discrimination. The protest was successful in gaining access to public roads and temples for Dalits.
T.K. Madhavan was a freedom fighter and social reformer. He was a member of the Indian National Congress and was involved in the Non-Cooperation Movement. He was also the founder of the Kerala Sahitya Akademi.
Poykayil Appachan was a social reformer and educationist. He was the founder of the Sree Narayana Gurukulam, a school for Dalit children. He was also a member of the Travancore Legislative Council.
Pandit Karuppan was a social reformer and freedom fighter. He was a member of the Indian National Congress and was involved in the Non-Cooperation Movement. He was also the founder of the Tamil Nadu Congress Committee.
Ayyankali was the most prominent leader of the Dalit community in Kerala during the early 20th century. He was a tireless campaigner for the rights of Dalits and played a key role in the Paliyam Satyagraha. He was also a strong advocate for education and social reform. Ayyankali’s work had a profound impact on the lives of Dalits in Kerala and helped to improve their social and economic status.