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: Pediatrics
Hair an syndrome is consists of ? 
Select and explain. 
A. Hyperandrogenism, B. Acanthosis nigricans, C. Insulin resistance, D. All of above
D: All of above
Answer: D: All of above 
Explanation: Ans. is 'd' i.e., All of above HAIR-AN syndrome consists of hyperandrogenism (HA), insulin resistance (IR), and acanthosis nigricans (AN). It is a subset of polycystic ovary syndrome