Fred and Wayne Are Four-Year-Olds and Friends

Multiple Choice

Fred and Wayne are four-year-olds and friends. When they are together, they often wrestle, run, race, push, and shove each other. Although their level of activity often aggravates their parents, we know that these activities will:

A) help the boys develop gross motor skills.
B) stop when their brains become better myelinated.
C) be temporary as they will not be friends for long.
D) help the boys with cognitive skills.