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
A 20-year old average weight female complains of oligomenorrhea along with facial hair. Preliminary investigations reveal raised free testosterone levels. USG Pelvis: ovary shows normal morphology. Which of the following could be likely etiology 
Select and explain. 
A. Idiopathic hirsutism, B. PCOD, C. Adrenal hyperplasia, D. Testosterone secreting tumor
B: PCOD
Answer: B: PCOD 
Explanation: Ans. b. PCOD