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
In a patient with multisystem trauma, thepresence of hypotension along with elevated central venouspressure is suggestive of - 
Select and explain. 
A. Upper airway obstruction, B. Major abdominal bleed, C. Cardio-pulmonary problem, D. Spinal cord injury
C: Cardio-pulmonary problem
Answer: C: Cardio-pulmonary problem 
Explanation: None