With no explanation, chose the best option from "A", "B", "C" or "D". “observed Terry' ... go through a series of acts, each of them perhaps innocent in itself, but which taken together warranted further investigation”); Paine v. City of Lompoc, 160 F.3d 562, 566 (9th Cir.1998) (finding that the police had reasonable suspicion to stop a suspected pugilist after receiving a report of a fight, witnessing a ring of apparent spectators, and after an onlooker yelled, “Cops!,” observing the suspect leave with a second, bloodied person). Here, many of the factors Pirone listed as his basis for suspecting the group of being the fighters he was looking for are, by themselves, innocuous. Other than their race, Pirone cited the group’s attempt to elude him on the train platform, but see Florida v. Royer, 460 U.S. 491, 497-98, 103 S.Ct. 1319, 75 L.Ed.2d 229 (1983) (<HOLDING>), and the fact that its members were standing

A: holding that flight from police can help establish reasonable suspicion for an investigatory stop
B: holding that one does not arouse reasonable suspicion merely by attempting to walk away from the police
C: holding that police officer was not justified in detaining a passenger who exited and began to walk away from a lawfully stopped vehicle absent an articulated reason as to why it was necessary to detain the passenger for the officers safety
D: holding that passenger who attempts to walk away from a legal traffic stop cannot be detained absent reasonable suspicion of dangerous or criminal activity
B.