Answer:
The correct answer is: D. Proximodistal.
Step-by-step explanation:
Proximodistal developmental can be understood as a pattern of growth and development in which the motor skills of the individuals part of the body that are closer to his/her trunk develop before the parts of the body that are far away. This means that the child can move his arms and legs first before he/she learns to manipulate things with his/her fingers.
In this particular case, Jack, a typical three-month-old, moves his arms for balance, but he is not yet able to reach and hold a rattle with his fingers. This type of growth is known as D. Proximodistal development.