[单项选择]Passage 2 Today ,many people are starving to death. There is a shortage of food and the available food is too expensive for hungry people to buy . Therefore , they go without food, or each day have only one or two small meals lacking the necessary vitamins to maintain good health. Recently, a man who wanted to understand the conditions of such people conducted an experiment . He only ate one meal a day for a month but continued to work as he normally did. During the first five days he was hungry at his regular meal times, but after he had dunk a glass of water his hunger went away. In the evening, when he ate his one meal,he ate auickly and consumed a large amount. During the next few days, although he was not hungry during the day , he quickly noticed every food stall, and the smelt of food caught his attention. During the third and fourth weeks, he had hunger pains and lacked physical strength. He looked forward to his one meal and ate it very slowly, enjoying every bite. Without
A. most people are just eating for fun
B. overweight people are wasting food
C. food has a different meaning for people
D. leftover food shouldn’t be thrown away