This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
All of the following are true about rib fractures except: 
Select and explain. 
A. Most common rib fractured during CPR: 4th-6th rib, B. Fracture of 11th, 12th & first rib fracture is uncommon, C. In flail chest, two or more consecutive ribs fractured in two or more places, D. Intermittent positive pressure ventilation is the preferred treatment for the flail chest
D: Intermittent positive pressure ventilation is the preferred treatment for the flail chest
Answer: D: Intermittent positive pressure ventilation is the preferred treatment for the flail chest 
Explanation: Treatment: - Chest strapping or splinting should be avoided. - Current Treatment consists of oxygen administration, adequation analgesia (including opiates) or epidural analgesia & Physiotherapy - IPPV (Intermittent positive pressure ventilation) is reserved for cases developing respiratory failure despite adequate analgesia & oxygen)