The Rhetorical element is used in this example is Sarcasm Option(a) is correct.
Sarcasm is the scathing utilization of words, frequently in a funny way, to ridicule somebody or something Sarcasm might utilize ambivalence, despite the fact that it isn't really ironic.
Social viewpoints on sarcasm fluctuate generally with in excess of a couple of societies and semantic gatherings tracking down it hostile to changing degrees. Thomas Carlyle scorned it: "Sarcasm I currently see to be, as a rule, the language of Satan; for which reason I have since a long time ago as great as repudiated it". Fyodor Dostoevsky, then again, perceived in it a cry of agony: Sarcasm, he said, was "typically the last shelter of humble and virtuous souled individuals when the protection of their spirit is coarsely and rudely invaded.
RFC 1855, an assortment of rules for Internet correspondences, incorporates an admonition to be particularly cautious with it as it "may not travel well." Another investigation of sarcasm over email confirms these claims. An expert interpreter has prompted that worldwide business leaders "ought to by and large stay away from sarcasm in intercultural business discussions and composed interchanges" due to the troubles in deciphering sarcasm.
Therefore Option(a) is correct.
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