The correct answer is the phrase "თაგვმა თხარა, თხარაო, კატა გამოთხარაო" because it is a repetition of the same words with slight variations in form, creating a rhythmic and poetic effect. This repetition emphasizes the action of "თხარა" (barking) and creates a vivid and memorable image in the reader's mind. Additionally, the repetition of the phrase adds to the overall musicality and flow of the text.