Metonymy is a one noun is to substituted for another with which it is to closely associated. The correct answer should be bold.
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<span>“They must prefer iron either to gold or silver, for men can no more live without iron than without fire or water," This detail illustrates the central idea of the passage, i.e. that Utopians value money less than other, more "useful" things. Iron, fire and water are useful--indeed vital--things for the Utopians' survival, but money itself has no value to them in their day-to-day lives.</span>
Hi! A. is correct this excerpt describes how the slaves had to cut and bundle the sugar cane.
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Because they were the minority at the time