This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Most common cause of central precocious pubey in girls is? NOT RELATED-MEDICINE 
Select and explain. 
A. Idiopathic, B. McCune-Albright syndrome, C. Hypothyroidism, D. Granulosa-theca cell tumour
A: Idiopathic
Answer: A: Idiopathic 
Explanation: .