Explanation: Centration involves focusing on one aspect of a situation and ignoring the others and It is a common phenomenon in early childhood. Furthermore, centration refers to the tendency of children to pay attention on only one salient aspect of an object, situation, or problem at a time, while they exclude other potentially important aspects.
According to the text, Brandon has no problem understanding that the 20-year-old woman who sometimes stays with him is both a student and a babysitter. However this is because Brandon's thinking has moved beyond centration. It means Brandon no longer think along one direction at the expense of others.
That those willing to buy the toy are not numerous enough to justify the space needed to store the toys.
In other words the supply is much more than the demand and the two won't reach equilibrium until the price drops down to 4.99. Then new customers will be more willing to buy it as a secondary gift for some child.
