G. Subramania Iyer was a prominent figure in Tamil journalism, known for founding:

The correct answer is: a) The Hindu.

G. Subramania Iyer was a prominent figure in Tamil journalism, known for founding The Hindu newspaper in 1878. The Hindu is one of the oldest and most respected newspapers in India. It is published in English and Tamil and has a circulation of over 1.5 million.

The other options are incorrect. Dinamani is a Tamil-language newspaper founded in 1905. Ananda Vikatan is a Tamil-language magazine founded in 1924. Kumudam is a Tamil-language weekly magazine founded in 1931.