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
Child changes a rattle from one hand to another at the age of – 
Select and explain. 
A. 3 months, B. 6 months, C. 9 months, D. 1 year
B: 6 months
Answer: B: 6 months 
Explanation: A child can transfer objects from one hand to the other by 5-7 months.