This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Mature finger grip comes at the age of ___ months. 
Select and explain. 
A. 5, B. 7, C. 9, D. 12
C: 9
Answer: C: 9 
Explanation: Nelson 20th edition, page 66 Grasping object between thumb and index finger (pincer grasp) develops by 9 months.