The answer is: [B]:
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"The participle phrase modifies the word, 'commuters'. "
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Note: Answer choice: [A] is true. The sentence DOES include a present participle, which is: "passing".
Answer choice: [B] is NOT true. The participle phrase, which is in fact, "passing", does NOT modify the word, "commuters". The participle phrase, "passing", modifies the word, "cars".
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