Subramania Bharati was indeed the son of Chinnasami Subramanya Iyer and Elakkumi (also known as Chinnammai), making option D correct. Bharati, known as 'Mahakavi Bharatiyar,' was a revolutionary Tamil poet, writer, and freedom fighter. The other options are notable Tamil figures - Subramaniya Siva (freedom fighter), V.O. Chidambaram Pillai (freedom fighter), and U.V. Swaminatha Iyer (Tamil scholar) - but are not the children of the specified parents.