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
First sign of puberty in girls – 
Select and explain. 
A. Puberchy, B. Thelarchy, C. Growth spurt, D. Menarche
B: Thelarchy
Answer: B: Thelarchy 
Explanation: In girls, the first visible sign of puberty is the appearance of breast buds (Thelarche), between 8-12 years of age.
In boys the first visible sign of puberty is testicular enlargement, beginning as early as 9% yr.