But is there a mistake in the scenario? The problem says exactly two of the chosen options are the same — this might be interpreted as at least two are the same, but the phrasing exactly two suggests exactly one pair, and the rest different — which is standard.

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Does the Scenario Contain a Mistake? Understanding the Logic of Exactly Two Identical Options When presented with a scenario where a problem states that exactly two of the chosen options are the same, interpretations can vary—especially regarding how “exactly two identical” is enforced logically. This article examines whether there can truly be a mistake in such a setup, why it often isn’t a mistake, and how precise phrasing matters in logical reasoning. ### What Does “Exactly Two” Mean in Practice? The phrase “exactly two same options” means that precisely one pair shares a value, while all other selected options must be different and distinct from this pair. For example, if options are A, B, C, D, and a valid choice set is {A, A, B}, this satisfies “exactly two identical” — two A’s and one distinct B. However, sets don’t normally allow duplicates, so context matters: sometimes problems treat options as a multiset or a sequence where repetition counts. Still, the core idea holds: only one duplicated value exists; all others must differ.