To answer this question, you need to be familiar with the work "Ramadhanya Charitre" and its author.
Option A) Purandaradasa - This option is incorrect because Purandaradasa is a famous composer and saint from Karnataka, known for his devotional songs in the Kannada language. He is not the author of "Ramadhanya Charitre".
Option B) Naraharithirtha - This option is incorrect because Naraharithirtha was a 13th-century philosopher and scholar from Karnataka. While he contributed to the field of philosophy, he is not the author of "Ramadhanya Charitre".
Option C) Kanakadasa - This option is correct because Kanakadasa is the author of "Ramadhanya Charitre". Kanakadasa was a poet, philosopher, and social reformer from Karnataka, known for his devotional compositions in the Kannada language.
Option D) Kalidasa - This option is incorrect. Kalidasa was a renowned classical Sanskrit poet and playwright from ancient India. He is known for works such as "Abhijnanasakuntalam" and "Meghaduta", but not "Ramadhanya Charitre".
Therefore, the correct answer is C) Kanakadasa. Kanakadasa is the author of "Ramadhanya Charitre".