Answer:
The statement that best summarizes the purpose of repetition in poetry is C. Poets repeat words and phrases to emphasize importan ideas in poems.
Step-by-step explanation:
In poetry, repetition is considered not only a literary device, but also a rhetorical device poets use to make an idea clear and memorable to the reader. Therefore, it is usually used to emphasize an idea and make the reader focus on that specific thought or emotion. Furthermore, it could also be used to create rhythm or to develop a sense of urgency.