The answer to this question is "It shows that Liam's favorite food is ice cream and nothing stops him from eating it." due to the fact that it does not state anything else about whether he has superpowers or if he is more adventurous then his group. It simply says he is more interested in saving his ice cream hence the fact that ice cream is his favorite food and nothing will stop him from eating it.
NAEP results are used as a sort of national control group or standard that local schools and districts can use to compare against their stundents' scores.
