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
[{'content': "Curare poisoning is characterised by: \nSelect and explain. \nA. Hypertension, B. Hypotension, C. Doesn't release histamine, D. Oral route of administration is the best route", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]