Which statement is true interpretation of the laws of normal child development?
All the four statements are correct. The attainment of milestones varies from one child to another. It differs amongst the brothers and sisters. This is because of different rate of myelination and development of the nervous system amongst different children. Development always proceeds in a cephalocaudal sequence. In the beginning there is head control. After this the child sits up and walking occurs after this.
The sequence and time of attainment of milestones may vary among individual children
Development always proceeds in a cephalocaudal sequence
Presence of primitive reflexes is essential for attaining voluntary actions
All of the above