Answer:
Cephalocaudal.
Explanation:
Cephalocaudal refers to the head to the toe of the body. The cephalocaudal principle denotes the motor and the physical development of the individual infants to the early childhood.
This principle explains the phenomena of the post natal development and includes the development of the weight, size, and differentiation of the body. The development always occur from the top to the bottom fashion. The first control of the head will occur and later the toe.
Thus, the answer is cephalocaudal.