Final answer:
A 250mL carton of milk contains approximately 2 food guide servings, as a standard serving is 120mL. The answer is option B.
Step-by-step explanation:
The question asks how many food guide servings are in a 250mL carton of milk. According to the provided information, a standard serving size for the Milk/Yogurt/Cheese group is 120mL or 0.5 cup. This means that 250mL of milk, which is more than two 120mL servings but less than three, would be considered to be approximately 2 servings.
Therefore, the correct answer is B) 2 servings.