The correct answer is D) K. Kelappan.
K. Kelappan was a social reformer, freedom fighter, and politician from Kerala, India. He was the leader of the Kayyur Revolt, a peasant uprising in Malabar in 1940. The revolt was against the oppressive feudal system in the region. Kelappan was also a member of the Indian National Congress and the Communist Party of India. He was a strong advocate for the rights of the poor and oppressed.
A) K.P.R. Gopalan was a communist leader from Kerala. He was a member of the Politburo of the Communist Party of India. He was also a member of the Rajya Sabha, the upper house of the Indian Parliament.
B) E.K. Nayanar was a communist leader from Kerala. He was the Chief Minister of Kerala from 1987 to 1991. He was also a member of the Rajya Sabha.
C) A.K. Gopalan was a communist leader from Kerala. He was a member of the Politburo of the Communist Party of India. He was also a member of the Lok Sabha, the lower house of the Indian Parliament.