A 49-year-old patient with alcoholism has fallen down a flight of stairs after consuming two-fifths of whiskey. He presents with confused and slurred speech and the smell of alcohol on his breath. Family states that he is "hopeless" and has been drinking more and more every night. They also say that he must be more drunk than usual because he usually does not slur his speech. Assessment reveals his airway to be open, breathing adequate, and circulation intact. He has a hematoma from the fall to the left side of his head and complains of pain to his left wrist. Given these assessment findings, the EMT would be most concerned about the:

A) Amount of alcohol consumed
B) Possible brain injury
C) Possible wrist fracture
D) Lack of family support

B) Possible brain injury