A 120 g yogurt container lists macronutrients that sum to 18 g (carbs + protein + fat). Which is the most plausible explanation for the remaining 102 g of mass?

• A. The food's packaging weight is included in the listed serving mass, and packaging often accounts for large portions of product mass reported on labels.
• B. Most of the remaining mass is water and other non-caloric components (e.g., minerals, air, or indigestible material) that add weight but not calories.
• C. The label must be fraudulent because macronutrients always equal total mass unless fiber is present, because fiber would increase calories.
• D. The product contains hidden alcohol-derived calories that are excluded from the macronutrient sum, typically amounting to the missing mass.

Answer: (B)