Answer:
A. A rumor
Step-by-step explanation:
B is wrong because the police has your consent to search.
C is wrong because the police the has enough reasons to believe the person committed a crime.
D is wrong because the police has the reason to take any evidence to court if it was in plain view and didn't need to be search for.
Therefore, A is the correct reason because the police can't arrest or search the person without a reasonable reason in the first place.