‘Kerala Panini’ A.R. Raja Raja Varma is known for his contributions to:

The correct answer is: B) Malayalam grammar.

A.R. Raja Raja Varma, also known as Kerala Panini, was a 19th-century Indian scholar, writer, and reformer. He is best known for his contributions to Malayalam grammar, including his magnum opus, the Adhyatma Ramayanam. He also wrote extensively on other topics, including history, literature, and social reform.

Here is a brief description of each option:

• Option A: Journalism. A.R. Raja Raja Varma did not make any significant contributions to journalism.
• Option B: Malayalam grammar. A.R. Raja Raja Varma is best known for his contributions to Malayalam grammar. He wrote extensively on the subject, and his work is still considered authoritative today.
• Option C: Poetry. A.R. Raja Raja Varma did write some poetry, but it is not his most well-known work.
• Option D: Social reform. A.R. Raja Raja Varma was also a social reformer. He campaigned for women’s rights and education, and he also worked to improve the lives of the poor.