A detective argues that the thief must be Lee. Only Lee and Park had keys to the room, and Park was out of town when the theft took place.
Which one of the following, if true, most seriously weakens the detective's argument?
Answer and explanation
Correct answer: A. The lock could be opened without a key by anyone using a simple tool
- Step 1: The argument assumes that only the two key holders could enter. Step 2. If anyone could open the lock, others could be the thief. Answer: the lock could be opened without a key. Why not the others: these do not widen the suspects.
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