This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social and Language Milestones, Subject name: Pediatrics
'Jargon' speech comes at:- 
Select and explain. 
A. 6 months, B. 9 months, C. 15 months, D. 12 months
C: 15 months
Answer: C: 15 months 
Explanation: 15 months - Jargon speech