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
Morphine a powerful opioid analgesic drug should be avoided in all the following conditions except: 
Select and explain. 
A. Left ventricular failure, B. Bronchial asthma, C. Constipation, D. Pancreatitis
A: Left ventricular failure
Answer: A: Left ventricular failure 
Explanation: None