The sentence from the ariticle that has a flaw in logic is the following: People who are addicted to their ear buds don't care about other people. This is called a flaw of ad hominem, which means the writer/author is targeting people who use earbuds rather than targeting their favor of ear buds.
Answer: B) People who are addicted to their ear buds don't care about other people
Credit to: @redpattonp1uayq
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look up child :)