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': 'TRH stimulation testing is useful in diagnosis of disorders of following hormones : \nSelect and explain. \nA. Insulin, B. ACTH, C. Growth hormone, D. Growth hormone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Growth hormoneAbout 60% of patients with GH - secreting tumours may exhibit paradoxical GH response to TRH stimulation. TRH induced GH stimulation may occur in acromegalyQ, renal failure & depression.', 'role': 'assistant'}]