You are called to the scene of a 14-year-old female patient who is unresponsive. Her mother states she has n teased and bullied at school and she suspects that she tried to commit suicide by taking her pain pills. The patient is unresponsive to painful stimuli, with agonal respirations, and has vomited. She has a weak carotid pulse. Your first action is to:

A) administer an oropharyngeal airway (OPA).
B) suction the patient's airway.
C) administer oxygen by nonrebreather mask (NRB).
D) administer oxygen by bag-valve mask (BVM).

B