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The correct answer is B. Metaphor
The land is not really a mother to anyone. Mother is used here as a metaphor for the land in which free people are born and nurtured. It's still a piece of land but it is being mentioned as a mother to attribute the warm feeling of mother caring for you to the land in which the free are born.
Writers used imagery to evoke picture in the mind of the reader, so that they can understand it better
The correct answer is c, because for is a example of an infinitive
Neither exercises nor an ice pack are helping to ease my sore knee.
