For the following nutrition label use the mass of each macronutrient to calculate the total Calories per serving.

• A. 84 Calories.
• B. 99 Calories.
• C. 124 Calories.
• D. 139 Calories.

Answer: (C)

Verified step by step guidance

1. Identify the macronutrients listed on the nutrition label (e.g., carbohydrates, proteins, and fats) and their respective masses in grams per serving.
2. Recall the caloric values for each macronutrient: carbohydrates and proteins provide 4 kcal per gram, while fats provide 9 kcal per gram.
3. Multiply the mass of each macronutrient by its respective caloric value to calculate the Calories contributed by each macronutrient. Use the formula: $\mathrm{Calories}=\mathrm{mass}\times \mathrm{caloric value}$.
4. Add the Calories from all macronutrients to determine the total Calories per serving. Use the formula: $\mathrm{Total Calories}=\mathrm{Calories from carbohydrates}+\mathrm{Calories from proteins}+\mathrm{Calories from fats}$.
5. Compare the calculated total Calories with the options provided (84, 99, 124, 139) to identify the correct answer.