It would be a narrative. This is because a narrative tells a story.
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To quiet your mind, hope this helps!!
logos is using logic so it could be that, and ethos is using a character or tries to convince you of its credibility so that is another option. Decide if their trying to appeal to credibility or if the statistic is more important.
Answer:
1.Because Mrs. White was disgusted.
2.No
3. Probably