Tea made from camellia leaves is a popular beverage. However, studies show that regular drinkers of camellia tea usually suffer withdrawal symptoms if they discontinue drinking the tea. Furthermore, regular drinkers of camellia tea are more likely than people in general to develop kidney damage. Regular consumption of this tea, therefore, can result in a heightened risk of kidney damage.Conclusion:
Regular consumption of this tea, therefore, can result in a heightened risk of kidney damage.Support for the conclusion:
regular drinkers of camellia tea are more likely than people in general to develop kidney damage We see that the author has observed a correlation between consumption of the tea and kidney damage and concluded that the first causes the second.
Which one of the following, if true, most seriously weakens the argument?This is a Weaken question. So, the correct answer will provide a reason why, even though the evidence is true, the conclusion may not be.
(A) Several other popular beverages contain the same addictive chemical that is found in camellia tea.The fact that other beverages contain the same chemical doesn't mean that camelia tea doesn't cause kidney damage.
It could be that other beverages cause kidney damage as well.
Eliminate.
(B) Addictive chemicals are unlikely to cause kidney damage solely by virtue of their addictive qualities.This fact does not mean that the chemical or the tea doesn't cause kidney damage.
It just means that the chemical isn't likely to cause damage in a certain way. The evidence provided still indicates that the tea may cause damage in another way.
Eliminate.
(C) Some people claim that regular consumption of camellia tea helps alleviate their stress.So, drinking the tea may have a benefit, stress alleviation.
The evidence still indicates that it also may cause kidney damage.
Eliminate.
(D) Most people who regularly drink camellia tea do not develop kidney damage.This choice is tricky. It could seem to weaken the argument by indicating that camelia tea does not cause kidney damage.
At the same time, the conclusion is not that camelia tea usually causes kidney damage. Rather, it's that consumption of the tea can result in "a heightened risk of kidney damage."
Even if most people who drink the tea don't develop kidney damage, the evidence that "regular drinkers of camellia tea are more likely than people in general to develop kidney damage" still indicates that drinking it can result in heightened risk of kidney damage.
Eliminate.
(E) Many people who regularly consume camellia tea also regularly consume other beverages suspected of causing kidney damage.This choice is interesting.
After all, if "Many people who regularly consume camellia tea also regularly consume other beverages suspected of causing kidney damage," then it's not clear whether the tea or the other beverages these people also drink are causing the observed kidney damage.
In other words, this choice presents a possible alternative reason for the correlation between consumption of the tea and kidney damage. It could be that what's going on is that people who drink the tea also tend to consume other beverages that cause kidney damage, meaning that the damage is not caused by the tea.
So, this choice indicates that, even though the evidence is true, the conclusion may not be.
Keep.
Correct answer: E