Superconductors are substances that conduct electricity without resistance at low temperatures. Their use, however, ...

Bianca on October 9, 2017

Answer A

That was already stated in the above statements, so how can that be the answer?

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Mehran on October 10, 2017

Hi @bdeleon30, thanks for your post. This is a Must Be True question. Sometimes, the correct answer on such questions is text directly derived from the stimulus. Put differently, just because the statement in (A) is essentially a repeat of a statement from the stimulus does not disqualify that answer choice from being correct on a Must Be True question.

Hope this helps!