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: Physiology
[{'content': 'The hormone associated with cold adaption is: \nSelect and explain. \nA. Growth hormone., B. Thyroxine., C. Insulin., D. Melanocyte Stimulating Hormone', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Thyroxine', 'role': 'assistant'}]