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': "Lady with central obesity & abd. Skin showing purple striae- \nSelect and explain. \nA. Conn's syndrome, B. Cushing's syndrome, C. Addison's disease, D. Hypothyroidism", 'role': 'user'}, {'content': "Answer: B \nExplanation: centripetal obesity, and broad violaceous cutaneous striae in abdomen classical presentation of Cushing's syndrome ( Harrison 17 pg 2255)", 'role': 'assistant'}]