Answer:
He should use a organizational structure.
Explanation:
I’m what work? You should be more specific.
But in any case, repetition helps focus the audiences attention to what the narrator finds most important. And is an important rhetorical device.
I believe it would be Ethos or Logos. (Logos uses logic and reasoning) (Ethos uses ads and such to emphasize the speakers credibility) I hope this helps! (I personally would go with Ethos but I’m not sure)