[单项选择]

Trying to get Americans to eat a healthy diet is a frustrating business. Even the best-designed public-health campaigns cannot seem to compete with the tempting flavors of the snack-food and fast-food industries and their fat-and sugar-laden products. The results are apparent on a walk down any American street—more than 60% of Americans are overweight, and a full quarter of them are overweight to the point of obesity.
Now, health advocates say, an ill-conceived redesign has taken one of the more successful public-health campaigns—the Food Guide Pyramid—and rendered it confusing to the point of uselessness. Some of these critics worry that America’s Department of Agriculture caved in to pressure from parts of the food industry anxious to protect their products.
The Food Guide Pyramid was a graphic which emphasizes that a healthy diet is built on a base of grains, vegetables and fruits, followed by ever-decreasing amounts of dairy products. m
A. it fails to identify the proper proportion of different food groups
B. it fails to distinguish between a hamburger and a chicken breast
C. it involves too much on-line work to benefit those who need it
D. it involves unlabelled, multi-colored strips out of a cartoon jumble

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