SolutionEach horizontal bar in the bar graph shows the possible number of milligrams of caffeine in each of the common beverages and drugs. The least possible
amount of caffeine in a 5-ounce cup of drip-brewed coffee is about 60 milligrams, and the greatest possible amount of caffeine in a 5-ounce cup of
cocoa is about 20 milligrams. So, the difference is approximately 60−20, or 40 milligrams. The correct answer is
Choice D.
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