Passage Summary: This cereal contains a very healthy ingredient, so the advertiser claims that eating it will make your overall diet better.

Conclusion: Eating Honey Oat Puffs for breakfast would improve the healthfulness of most people's diets.

Reasoning: The cereal is made with whole-grain oats, which health experts consider to be one of the most healthful foods available.

Analysis: This argument suffers from a 'composition' flaw—assuming that because one part of a thing is healthy, the whole thing is healthy. A cereal made with healthy oats could also be loaded with enough sugar and preservatives to negate the benefits. Furthermore, it ignores what the cereal might be replacing; if you swap a healthy bowl of fruit for this cereal, your diet might actually get worse. Look for an answer that highlights the gap between a single healthy ingredient and the healthfulness of the entire product or diet.