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: Medicine
Clubbing of the fingers is seen in all of the following
conditions except: 
Select and explain. 
A. Bronchiectasis, B. Coronary artery disease, C. Lung abscess, D. Tetralogy of Fallot
B: Coronary artery disease
Answer: B: Coronary artery disease 
Explanation: None