The correct answer is this: SHE DIVULGES HER DISDAIN OF HIS SUPERFICIALITY.
To be superficial means to be shallow, to lack depth. From the passage given above, the man in the passage show his ignorance by revealing that he has never seen white elephants before and the reply that the girl gave him shows that, she dislike his ignorance in such matter.
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A. Those chewed up tennis balls in the yard are my dog's.