Final answer:
The correct serving size for grain products, such as cereal, according to the Canadian Food Guide seems to be closest to 1/2 cup or 125 mL, aligning with other standard serving sizes listed for different food categories.
Step-by-step explanation:
The question pertains to the Canadian Food Guide (CFG) servings for grain products, specifically the amount needed for a single serving of cereal, both cold and hot.
A serving size is a standard measurement that helps determine the amount of food recommended for consumption to maintain a healthy diet. In the context of CFG, the standard serving size appears to be 120 mL (0.5 cup) for liquid products based on other items listed, which are consistent in volume but vary in terms of the type of food.
The similar serving size information for other food categories, such as milk products and vegetables, suggests that for cereal, the correct answer would ideally align with these serving size standards. As this information is not directly provided in the data, the standardized serving size of 120 mL (0.5 cup) for related items could potentially apply by comparison, which would be closest to option b) 1/2 cup, 125 mL.