This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Developmental-Behavioral Screening and Surveillance, Subject name: Pediatrics
Children can reach for objects by: 
Select and explain. 
A. 4 months, B. 6 months, C. 8 months, D. 10 months
A: 4 months
Answer: A: 4 months 
Explanation: Ans: A (4 months) Ref: Nelson Textbook of Pediatrics, 19th edition. Pg 27. Explanation: (See following table) Fine motor milestones MilestoneAverage age of attainment (in months)Developmental implicationsGrasps rattle3.5Object useReaches for objects4Visuomotor coordinationPalmar grasp gone4Voluntary releaseTransfers object hand to hand5.5Comparison of objectsThumb-finger grasp8Able to explore small objectsTurns pages of book12Increasing autonomy during book timeScribbles13Visuomotor coordinationBuilds tower of 2 cubes15Uses objects in combinationBuilds tower of 6 cubes22Requires visual, gross, and fine motor coordination