A beverage contains 'milk solids' and the product claims 'low sugar.' On tasting, consumers report sweetness similar to sugared drinks. Which compositional explanation best reconciles the low added sugar claim with high perceived sweetness?

• A. The product probably contains only galactose as the sugar as galactose is the sweetest monosaccharide and thus explains the sweetness despite low sugar labeling.
• B. Milk solids may contain lactose and other components but sweetness similar to sugared drinks likely arises from naturally occurring lactose combined with other sweet compounds or flavorings; additionally, if product contains fructose-containing ingredients (like fruit concentrates), perceived sweetness can be high despite low added sucrose.
• C. Low sugar on the label means the product contains primarily maltose which is invisible to sweetness receptors, so tasting like sugared drinks is physiologically impossible and must be due to labeling error.
• D. The beverage likely contains no carbohydrates at all; sweetness perception is produced solely by carbonation which is indistinguishable from sugar in taste tests.

Answer: (B)