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': 'Sushila, 25 year old young lady presented with complaint of acute hirsuitism and hoarseness of voice. Which of the following should be the best investigation to be done for the diagnosis - \nSelect and explain. \nA. Blood pregnenolone levels, B. Blood DHEA levels, C. 17-ketosteroids level, D. LH and FSH levels', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans is option 2 Blood DHEA levels Ref Harrison 17/e p303 ( t 50.2)', 'role': 'assistant'}]