The correct answer is option 3, Krishnadevaraya, who was the author of the Telugu work Amuktamaly ada.

Option 1, Harihara, is incorrect as Harihara was not the author of Amuktamaly ada.

Option 2, Devaraya, is incorrect as Devaraya was not the author of Amuktamaly ada.

Option 4, Bukka, is incorrect as Bukka was not the author of Amuktamaly ada either.

Therefore, the correct answer is option 3, Krishnadevaraya, who was a prominent emperor of the Vijayanagara Empire in South India and a celebrated patron of literature and arts. He is known for his contributions to literature in Telugu and was the author of the renowned work Amuktamaly ada.