Final answer:
The best example of circular reasoning is option C, which assumes that everyone should support a law because the majority has already voted for it, without providing any logical reasons or evidence to support the claim.
Step-by-step explanation:
The best example of circular reasoning among the options provided is option C: "Over 60 percent of us have voted for the law. Why haven't you?" This argument assumes that everyone should support the law simply because the majority has voted for it, without providing any logical reasons for supporting it.
Circular reasoning occurs when the argument restates the claim or uses the claim to support itself, without offering any new evidence or logical reasoning to support the claim.
In this example, the argument assumes that the listener should support the law because the majority has already voted for it, but it fails to provide any logical reasons or evidence to convince someone to support it. This is an example of circular reasoning because the argument is circularly dependent on the claim that the majority has already voted for the law.
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