This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth, Development, and Behavior, Subject name: Pediatrics
The following are characteristic of autism EXCEPT: 
Select and explain. 
A. Onset after 6 years of age, B. Repetitive behavior, C. Delayed language development, D. Severe deficit in social interaction
A: Onset after 6 years of age
Answer: A: Onset after 6 years of age 
Explanation: Ans. a (Onset after 6 years of age). (Ref. OP Ghai Paediatrics 6th ed. 65)AUTISM# Onset occurs before 3 years of age.# Diagnostic triad of features is:- Impaired social interaction- Impaired communication- Impaired imagination# Language development is delayed.# Rigid repetitive pattern of behavior is seen.