This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Impoant Motor Milestones, Subject name: Pediatrics
When is this gross motor milestone attained by a child? 
Select and explain. 
A. 6 months, B. 12 months, C. 15 months, D. 24 months
C: 15 months
Answer: C: 15 months 
Explanation: The given picture shows a child creeping upstairs, that comes at around 15 months age; Another impoant milestone that appears at around 15 months age is Jargon speech