Answer: The correct answer to the question is option C
Explanation: Down syndrome is a genetic disorder,it is otherwise known as trisomy 21.
In down syndrome,the 21st number of chromosome has an extra copy which is an error.
Children with down syndrome undergoes delay in there physical and intellectual development.
This delay in developmental milestones makes them different from normal children.
Some of the babies and children with down syndrome always reach the early sensory and motor milestones at a later age/stage unlike normal children.some of these milestones are standing, rolling, sitting, walking and grasping.
This delay in developmental milestones is what will make a child of 12months to to eat with his hands which is unlike normal babies that attain such motor skills at an earlier age.
All other options do not show delay in developing milestones.