Final answer:
40-45 grapes for a snack contain roughly 60-68 grams of carbohydrates, which equates to about four carbohydrate servings, given one serving is typically 15 grams.
Step-by-step explanation:
The question relates to carbohydrate counting in diabetes management, which is a crucial aspect of maintaining proper blood glucose levels. When considering the grape snack containing 40-45 grapes, we need to assess the carbohydrate content in comparison to other common foods. Given that an apple typically contains about 20 grams of carbohydrates, we can use this as a reference point. Since grapes have a different carbohydrate density than apples, an approximation based on average nutritional data suggests that 10-15 grapes might have around 15 grams of carbohydrates. With this estimation, 40-45 grapes would approximately provide 60-68 grams of carbohydrates, which aligns closely with three servings since a single serving of carbohydrates is often considered to be 15 grams.
Answer:
The teen's afternoon snack of 40-45 grapes is equal to about four carbohydrate servings (D).