Explanation

Recycle the clue that Sheila made what seemed like bitter complaints. None of to waffle, dissemble, or mince mean to make bitter complaints, so eliminate choices (A), (C), and (E). You might have associated grieve with the word grievance, but it actually means to mourn, so eliminate choice (D). To rail is to make bitter complaints, so select choice (B).

Hence option B is correct!
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Sandy
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