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
Most common complication of central venous line is catheterisation is 
Select and explain. 
A. Air embolism, B. Pneumothorax, C. Catheter related sepsis, D. Injury to artery veins
C: Catheter related sepsis
Answer: C: Catheter related sepsis 
Explanation: Central Venous Catheterisation:
Most common complication - Catheter related sepsis 
Most dangerous complication - Pneumothorax