This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
[{'content': 'Temperature above which normal hormonal actions fails \nSelect and explain. \nA. 45degC, B. 35degC, C. 30degC, D. 25degC', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Normal temperature for hormonal action is below 45-degree Celcius.Ref: Ganong&;s review of medical physiology; 24th edition', 'role': 'assistant'}]