Answer:
B. Use repetition only to create impact
Explanation:
The correct answer to the question about when to use repetition to create parallelism is:
B. Use repetition only to create impact
Repetition in writing should be used purposefully to emphasize a point, create rhythm, or enhance the overall impact of the text. Overusing repetition can make the writing seem redundant or uninteresting, whereas not using it at all may miss opportunities to strengthen the message.