<span>a. three times a day.</span>
Without a list composed, i cannot give a certain answer. But a question that is too narow could be like "Where does pine grow?"
Basically it would be a question that will not require too much detail.
C is your answer. It gives the most details and D is an opinion
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Lady Macbeth's plan includes having King Duncan stabbed to death with daggers and framing the guards (who will be drugged and unable to react to the murder) in his room by rubbing them with the king's blood. She will signal Macbeth when it is time for him to go to the King's quarters to do the deed.
Voice
When people say "lower your tone", it means lower your voice.