Which detail best provides an example to illustrate the central idea that follows?The Utopians value money less than other, more useful things.

Choice C gives a concrete comparison: the Utopians prefer iron to gold or silver because iron is more necessary for life. This illustrates the central idea that they value money less than more useful things. Choice B states a general principle about valuing things according to their usefulness, but C provides the clearest example.

AI-written and checked against the verified answer.