At Age 3, Michelle Could Scribble, Her Crayon Tightly Grasped

Multiple Choice

At age 3, Michelle could scribble, her crayon tightly grasped in her fist. By age 4 she could color neatly in the lines of her coloring book. By age 5 she could better control a pencil and write her name legibly. This progression most clearly illustrates:

A) integration
B) differentiation
C) synaptogenesis
D) an executive function