Answer:
C Establish a cultural comparison for her argument about napping.
Explanation:
The author has tried to mention the custom of European napping. It is a mid day pause from the routine works to feel the individual fresh every day. The person can have a short break from his work and enjoy the time doing things that make him feel fresh again. The author has made comparison from the other countries who do not follow such rituals.
A sounds like a answer but don't let it fool you, same with C. B or D will most likely be your answer I would go with D
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