question: Q:An 18-year-old male was brought to the emergency room after he caused an accident by driving at a slow speed as he was entering the freeway. He appears to have sustained no major injuries just minor scratches and lacerations, but appears to be paranoid, anxious, and is complaining of thirst. He has conjunctival injection and has slowed reflexes. A police officer explained that he had confiscated contraband from the vehicle of the male. Which of the following substances was most likely used by the male?? 
  {'A': 'Phencyclidine (PCP)', 'B': 'Cocaine', 'C': 'Heroin', 'D': 'Alprazolam', 'E': 'Marijuana'},