Of the Following Patients,which Injury Is the Highest Priority to Receive

Of the following patients,which injury is the highest priority to receive bag-valve-mask ventilations?

A) 25-year-old female victim of battery who is awake but complains of a headache and has bloody fluid draining from her nose and left ear
B) 15-year-old female who was ejected from a vehicle, struck her head on a tree, and displays decerebrate movements in response to painful stimuli
C) 25-year-old male who regained consciousness one or two minutes after being struck on the head by a baseball bat and is now asking repetitive questions
D) 70-year-old male who struck his head when he fell in the parking lot, has a large laceration on his forehead, and is disoriented