A 28 year old male patient is brought to the casualty with severe hypotension

A 28 year old male patient is brought to the casualty with severe hypotension following a car accident. On examination no external bleed or injuries are seen. The cause of hypotension is possibly


a) intrathoracic and abdominal bleed  
b) fracture rib 
c) intracranial bleed 
d) neurogenic shock


Ans (a)