Passage Summary: You can't say sugar doesn't cause diabetes, because sugar makes you gain weight, and gaining weight can give you diabetes.

Conclusion: It is incorrect to claim that a diet high in refined sugar is not a cause of adult-onset diabetes.

Reasoning: Refined sugar can lead to being overweight, and being overweight is a known factor that can lead to adult-onset diabetes.

Analysis: The structure of this argument is a transitive causal chain used to refute a denial. The author argues that A (sugar) can cause C (diabetes) because A causes B (overweight) and B causes C. To find the parallel, look for an argument that defends a causal link by introducing an intermediate step. The abstract pattern is: 'It is false that X does not cause Z, because X causes Y and Y causes Z.' Ensure the conclusion of the matching choice is also refuting a claim of 'no causal relationship.'