The thing which this piece of dialogue reveals about Zaroff’s character is C. He is a very well-educated man.
This refers to the use of words between more than one speaker as they communicate with each other and exchange ideas.
With this in mind and from the given excerpt, we can see that there is a piece of dialogue between General Zaroff and Rainsford and we can infer that he is educated based on the fact that he could read three languages.
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