Final answer:
According to the food guide, 1 tablespoon of peanut butter corresponds to 1 serving.
Step-by-step explanation:
According to the food guide, 1 tablespoon of peanut butter is considered to be 1 serving. The label on a jar of peanut butter typically provides the nutritional information, such as serving size and the amount of protein, fat, and sugar present in each serving. Therefore, in this case, 1 tablespoon of peanut butter corresponds to 1 serving according to the food guide.