According to FDA guidelines, a food may bear the term "low calorie" if it has 40 calories or fewer in total per serving. The correct option is A.
What is FDA?
The full form of FDA is food and drug administration. It is a body that inspects the quality of packaged foods. All packaged food required the approval of the FDA to sell in the market.
The FDA also decides the calories of the food, if less than 40 calories it comes under low-calorie food.
Thus, the correct option is A. low calorie.
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