College student: Whenever I need to study but feel sleepy, all I do is take a
few of those caffeine pills, and I'm completely awake. According to the label,
these pills are perfectly safe to use, since I could get the same amount of
energizing caffeine by drinking a few cups of coffee.
Which of the following statements weakens the argument expressed by the
student?
A. Pills that can help prevent drowsiness often contain caffeine, a natural
substance that can increase "awakenesss" and provide the user with a sudden
boost of energy.
B. Since caffeine is a natural substance found in many common foods such as
chocolate, pills that are caffeinebased may be just as safe.
C. One subconsciously limits intake of caffeine through its method of intake;
for example, most people can drink only a few cups of coffee before they feel
full.
D. Many students tend to pull "all nighters" in school, and caffeine pills are
an ideal way to reduce drowsiness and study through the night.
E. In the last decade, many pharmaceutical companies have released caffeine-
based pills that have been widely sold over the counter in drugstores.
