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: Gynaecology & Obstetrics
[{'content': 'Kali Rani a 20yr old girl presents with history of rapidly developing hirsutism and amenorrhea. To establish the diagnosis you would like to proceed with which of the following tests in blood : \nSelect and explain. \nA. 17 - OH progesterone, B. DHEA, C. Testosterone, D. LH : FSH ratio', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is c i.e. Testosterone', 'role': 'assistant'}]