hard · LSAT
Four people—A, B, C, and D—are candidates for a committee, and some subset of them will be selected. If A is selected, then B cannot be selected. If C is not selected, then B must be selected.
Which one of the following must be true?
- C is selected.
- B and D are both selected.
- If D is selected, then A is selected.
- B is never selected under any valid arrangement.
- At least one of A and C is selected.
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