Compare the vitamin C nutrient density of two snacks: Snack A provides 60 mg vitamin C and 80 kcal per serving; Snack B provides 40 mg vitamin C and 40 kcal per serving. Which snack has higher vitamin C nutrient density and what is the magnitude of difference (mg vitamin C per kcal)?

• A. Snack A by 15 mg vitamin C per kcal because it has more absolute vitamin C
• B. Snack B by 0.25 mg vitamin C per kcal
• C. Snack A by 0.25 mg vitamin C per kcal
• D. They are equal in nutrient density; both are 0.88 mg vitamin C per kcal

Answer: (B)