Cooking changes the composition of carbohydrate to sucrose; this gives a natural sweetness to the food. This is the reason why starch-rich or carbo-loaded kinds of food are very enticing to the senses, because when they are cooked the food naturally releases these sweet aroma and taste that you cannot resist.
Sugar is not a drug. Sure, sugar is addictive but fats are not drugs. The brain doesn’t respond to nutrients, like sugar, like the same way it does to additive drugs. Such as heroine.
D is the correct answer. While a person is asleep the parasympathetic nervous system is still active, utilizing the autonomic subdivision. Hope it helped you, and have a great day. :)
-Charlie