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: Medicine
[{'content': 'Hyperpigmentation is seen with \nSelect and explain. \nA. FSH, B. LH, C. ACTH, D. TSH', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ref image - Davidson's medicine 23e p672", 'role': 'assistant'}]