Answer:
The correct answer about Lactose(milk sugar) is C;
C: It would provide more short-term energy than long-term energy, because it has disaccharides, but not the fats contained in whole milk.
Carbohydrates are short term source of source as compared to fats. That is why Lactose provide more short-term energy than long-term energy, because it has disaccharides, but not the fats contained in whole milk.