Under the Fourth Amendment, which test determines whether police conduct constitutes a 'search' requiring a warrant or justification?
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A
The reasonable suspicion test — whether police had articulable facts justifying the intrusion
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B
The Katz test — whether the person had a subjective expectation of privacy that society recognizes as reasonable
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C
The trespass test — whether police physically entered the defendant's home or curtilage
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D
The probable cause test — whether the totality of circumstances suggests criminal activity