The writing here is nothing like what you'd see in a real GMAT question - the question uses language so imprecisely that it's hard to know what most of it means. You also will never need to know what "opprobrious" means on the GMAT (though maybe on the GRE), especially not how they're using it here (they aren't even using its common definition).
Some replies above seem to rule out B because it restates a premise of the argument. But if you're asked what you can
infer from a passage, which is what we're asked here, any answer that restates a premise absolutely
must be correct. If you saw a CR passage that began:
Annual rainfall in Tazora is 96 inches, etc etcand you were asked what you could infer, then "It sometimes rains in Tazora" clearly must be true. If that was an answer choice, it would need to be the right answer, even if it essentially restates a premise. Real GMAT CR is not usually that easy, but when it is, don't overthink things!
Answer C might be correct if this were an RC question that asked "what conclusion is the author intending the reader draw from the passage" or some question like that. C is too vaguely worded to be an inference at all (what does "bode well" even mean? "bode well" for whom, and in what respect? It is such a vague phrase that it's almost meaningless). Answer B restates something mentioned in the passage. The word "opprobrious" in its more common usage means "harshly critical", so you might describe an essay or sentence that way. That's not how they're using the word here - they're using its rarer meaning "deserving of harsh criticism". And the stem tells us "it is more important to denounce such acts in developed societies", so some of these acts deserve more criticism than others, according to the passage. So B is a correct inference.
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