Jack Was Hanging Out in a Gang-Infested Neighborhood

Jack was hanging out in a gang-infested neighborhood. Officer Knight watched Jack walk up to a car in the parking lot of a fast-food place. From where Officer Knight's police car was located about 50 feet away, it looked like Jack had started an argument with the driver of the car. Officer Knight exited his car and walked rapidly toward Jack. When he was 10 feet away, he yelled at Jack to step back from the car and put his hands up. Jack took one look at Officer Knight and ran the other direction. Officer Knight saw an unidentified object in Jack's hand that he thought might be used as a weapon, so he fired two shots. One shot missed but the other struck Jack in the leg. Immediately after arriving at the spot where Jack fell, Officer Knight searched him and found 3 baggies of marijuana in his pocket. Did Officer Knight have the right to search Jack's pockets?

A) Yes, Officer Knight can do a complete search of Jack immediately after arresting him.
B) Yes, Officer Knight had reasonable suspicion Jack planned to physically attack the man in the car.
C) No, Officer Knight must render first aid before arresting Jack.
D) No, Officer Knight had no reason to believe Jack had marijuana in his pocket.