【題組】44. Which of the following statements best expresses the main idea of the passage?
(A) Some people are so sensitive to sugar or caffeine that they feel tired, irritable, or depressedwithin an hour of eating even two cookies or drinking one cup of coffee.
(B) Sugar is a good source of carbohydrate—the energy fuel—so why do sweets bring youdown?
(C) Finally, people who frequently snack on sweets are likely to consume inadequate amountsof the energizing nutrients.
(D) Consuming sugar as a quick fix for dwindling energy merely results in a temporary high,but in the long run, it can initiate a vicious energy cycle.