Final answer:
A serving of food supplies 12 grams of carbohydrate, 3 grams of protein, and 5 grams of fat, as stated in the initial description of the food's content.
Step-by-step explanation:
The student's question is concerned with identifying the correct amounts of macronutrients (protein, fat, and carbohydrate) in one serving of a food item. Based on the given information, a serving of this food supplies 12 grams of carbohydrate, 3 grams of protein, and 5 grams fat.
None of the other options provided are correct because they do not match the amounts of macronutrients that were stated initially. This assessment falls under the context of understanding nutrition labels and how to calculate the nutritional content of food items.