This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Development and Epidemiology, Subject name: Pediatrics
Delayed puberty in female- 
Select and explain. 
A. No breast budding in 10 years, B. Menarche > 16 year, C. menarche > 1 year of brean budding, D. FSH < 20 in 16 year
B: Menarche > 16 year
Answer: B: Menarche > 16 year 
Explanation: Ans. is 'b' i.e., Menarche Delayed PubertyMore common in boy than girlMost common cause in constitutional delayGirls-Delayed puberty is defined asLack of secondary sexual character by age of 17 yearsAbsence of menarche by age of 16 year5 year a fter pubertal onset.Boys-Lack ofpubertal changes by the age of 14 years.