CombinatoricsDifficulty 2.0JuniorFind the answerUnited Kingdom
Wenlu, Xander, Yasser and Zoe make the following statements: Wenlu: "Xander is lying." Xander: "Yasser is lying." Yasser: "Zoe is telling the truth." Zoe: "Wenlu is telling the truth." What are the possible numbers of people telling the truth?
(A) 1 or 2 (B) 1 or 3 (C) 2 (D) 2 or 3 (E) 3
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