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Sat 14 Jan, 2006 05:47 am
Here are three answers:
A: Answer A
B: Answer A or B
C: Answer B or C
The question: There's only one correct answer to this question. Which of the answers is it, and why?
Whim
C
If the answer were A, then B (A or B) would be a valid answer.
If the answer were B, then C (B or C) would be a valid answer.
C is the only valid answer when C is the answer.