This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
The most impoant clinical finding in a case of head injury is - 
Select and explain. 
A. Pupillary dilatation, B. Level of consciousness, C. Focal neurological deficit, D. Fracture skull
B: Level of consciousness
Answer: B: Level of consciousness 
Explanation: Ans. is `b' i.e., Level of consciousness