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: Forensic Medicine
Which is the most common organ affected in primary blast injury? 
Select and explain. 
A. Lung, B. Ear, C. Skin, D. Bowel
B: Ear
Answer: B: Ear 
Explanation: Most common organ affected in primary blast injury is ear. The next common organ is spleen.