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
Which of the following developmental milestones is first to happen? 
Select and explain. 
A. Mirror play, B. Crawling, C. Creeping, D. Pincer grasp
A: Mirror play
Answer: A: Mirror play 
Explanation: Mirror play develops at the earliest, from the given options. Mirror play - 6 months Crawling/Creeping - 11 months Pincer Grasp - 9 months Ref: Essential Pediatrics, OP Ghai - 6th Edition, Page 44