Final answer:
The most sophisticated fine motor skill that develops last is the ability to write with a pencil.
Step-by-step explanation:
Motor skills refer to our ability to move our bodies and manipulate objects. Fine motor skills focus on the muscles in our fingers, toes, and eyes and enable coordination of small actions such as grasping a toy, writing with a pencil, and using a spoon.
The most sophisticated fine motor skill that develops last is the ability to write with a pencil. This requires precise control of hand muscles and coordination between the eyes and hands.
Other examples of sophisticated fine motor skills that develop later include playing a musical instrument, sewing, and typing on a keyboard.