The freedom fighter who established the Deshabhimani newspaper was:

T.K. Madhavan
K.P. Kesava Menon
Swadeshabhimani Ramakrishna Pillai
C.V. Kunhiraman

The correct answer is C) Swadeshabhimani Ramakrishna Pillai.

Swadeshiani Ramakrishna Pillai was a freedom fighter and journalist who established the Deshabhimani newspaper in 1906. He was born in 1858 in Thiruvananthapuram, Kerala, India. He studied law at the University of Madras and then worked as a lawyer in Thiruvananthapuram. He was a member of the Indian National Congress and was involved in the freedom struggle. He was arrested and imprisoned several times for his activities. He died in 1921.

The other options are incorrect.

A) T.K. Madhavan was a freedom fighter and journalist who established the Malayala Manorama newspaper in 1888.

B) K.P. Kesava Menon was a freedom fighter and social reformer who established the Swadeshi Steam Navigation Company in 1906.

D) C.V. Kunhiraman was a freedom fighter and poet who established the Mathrubhumi newspaper in 1923.