A packaged food lists serving mass as 100 g, but the macronutrient line items add to only 12 g. A student argues the product must be 88% water. Which of the following best analyzes the student's claim?

• A. The student is incorrect; the missing mass is certainly packaging residue reported on the label, which typically accounts for most of the discrepancy in serving mass.
• B. The student is correct only if the product contains exactly 88% alcohol instead of water, because alcohol would not be listed under macronutrients on many labels.
• C. The student must be wrong since macronutrients always account for nearly 100% of the food's mass in commercially labeled foods; missing mass indicates mislabeling.
• D. The student's claim is plausible: most of the remaining mass is likely water and non-caloric components (e.g., salt, ash, fiber), but precise water content requires more information such as fiber or moisture analysis.

Answer: (D)