C. more examples of parallel play among the 4-year-olds.
Explanation:
Parallel play usually starts after the first birthday and will be decreasing when the child starts to interact more with other kids and stop being egocentric. This kind of play consists of playing among other kids, but without interacting with each other, they observe what the other kid is doing and do the same. 4-year-olds kids are still egocentric and do not interact a lot with their mates, while 8-year-olds kids interact with each other, are not egocentric, and have a different type of play.
Eat colorful fruits and vegetables, like berries, broccoli, carrots, etc. Don't stare at a screen too close, and take a break every hour. Drink lots of water, and try to look far distance.
