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
Temperature above which normal hormonal actions fails 
Select and explain. 
A. 45degC, B. 35degC, C. 30degC, D. 25degC
A: 45degC
Answer: A: 45degC 
Explanation: Normal temperature for hormonal action is below 45-degree Celcius.Ref: Ganong&;s review of medical physiology; 24th edition