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: Pharmacology
Propranolol is useful for all of the following except: 
Select and explain. 
A. Angina, B. Familial tremor, C. Hypertension, D. Partial AV block
D: Partial AV block
Answer: D: Partial AV block 
Explanation: None