Paramedics arrive on scene for a 15-year-old male who is dressed in several layers of clothing, is very dirty with matted hair, and emits a pungent odor of vomit and alcohol. The patient is responsive, verbally abusive to bystanders, and has no obvious mechanism of injury. Which of the following approaches is the most appropriate?
A. Introduce themselves and ask if the patient would like assistance
B. Call the police and return to the station as no treatment is required
C. Speak assertively to get the patient's attention and tell him to calm down
D. Assist the patient to the ambulance and transport him to the nearest shelter