Kavirajamarga is the earliest available writing on poetic and grammar in the Kannada literature. It was written by which of the following King?

Answer: Option B

Kavirajamarga is the earliest available writing on poetic and grammar in the Kannada literature. It was written by Amoghavarsha King.
Important points about Amoghavarsha:
• Kavirajamarga is the earliest available work on rhetoric, poetics and grammar in the Kannada language.
• It was inspired by or written in part by the famous Rashtrakuta King Amoghavarsha I, and some historians claim it is based partly on the Sanskrit text Kavyadarsha.
• He was the greatest ruler of Rashtrakuta dynasty.
• During the rule of Amoghavarsha-I, many Sanskrit and Kannada scholars gained prominence.
• Amoghavarsha I was a well established scholar and poet.