In Florida V J

In Florida v J.L.(2000) ,what did the court decide with regards to an anonymous tip regarding a man with a gun?

A) That the informant would have to identify themselves before the police could act.
B) That a stop and frisk was justified in the interests of public safety.
C) That an anonymous tip lacking any indications of reliability does not justify a stop and frisk,even though it did allege the illegal possession of a firearm.
D) That as long as the police could verify the information,it a stop and frisk would be permissible.