Passage Summary: Kids who are sensitive to taste hate sharp cheese, while kids who aren't sensitive don't care. Since we know kids dislike bitter things, we are concluding that the sensitive kids must find the sharp cheese bitter.

Conclusion: Supertasters perceive sharp cheddar as more bitter than mild cheddar, while nontasters do not perceive a bitterness difference between the two.

Reasoning: Supertasters prefer mild to sharp cheese, nontasters have no preference, and there is a general rule that children dislike food more as it becomes more bitter.

Analysis: The argument assumes that bitterness is the *only* factor driving these children's preferences. While we know bitterness leads to dislike, we don't know if the dislike for sharp cheddar is actually caused by bitterness or some other flavor, like acidity or saltiness. To guarantee the conclusion, we need an assumption that connects these specific preferences exclusively to bitterness. Look for an answer that eliminates other flavor differences or explicitly links the preference for mild cheese to its lower bitterness levels.