
Passage: Nutritionists: All medical research to date shows that drinking 3 cups or less of coffee a day is not harmful to the heart. Therefore, if you are a moderate coffee drinker, then you can enjoy coffee with confidence without worrying about coffee harming people's health.
Question: Which of the following statements most readily points out the flaw in the above argument?
A. A.Coffee drinkers may eat other heart-bad foods while drinking coffee
B. B.The nutritionist's conclusions are only based on relevant research results and lack the support of clinical data
C. C.Just because coffee is good for the heart doesn't mean it's good for the body
D. D.People who drink coffee often have greater psychological stress, and greater psychological stress itself is harmful to the heart
Answer: