<prompt> Which statement is true interpretation of the laws of normal child development?The sequence and time of attainment of milestones may vary among individual childrenDevelopment always proceeds in a cephalocaudal sequencePresence of primitive reflexes is essential for attaining voluntary actionsAll of the above  <response>: 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. 