<span>The following are the lines 16–18 (Act 2, scene 1), in which Macbeth tells Banquo that he and his wife couldn’t entertain the king as they would have liked.
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Being unprepared,
Our will became the servant to defect,
Which else should free have wrought
= these lines are ironic because the wife of Baquo liked to entertain the king but she can't because she is not prepared. Her will to entertain may cause a mistake because she was not prepared what should be carefully done.
The third stanza is the answer
A way of predicting winter storms
The answer is D. Infancy and old age.
I hope this helps. :)
