Discussion
A study of the dietary habits of a group of people who had recently developed cancer and a group without cancer found that during the previous five years the diets of the two groups’ members closely matched each other in the amount of yogurt they contained. Yogurt contains galactose, which is processed in the body by an enzyme. In the people with cancer the levels of this enzyme were too low to process the galactose in the yogurt they were consuming. It can be concluded that galactose in amounts exceeding the body’s ability to process it is carcinogenic. Of the following, which one constitutes the strongest objection to the reasoning in the argument?
*This question is included in June 2013 LSAT (PT69): Logical Reasoning A, question #3
| (A) | The argument fails to consider whether the dietary habits of everyone in the two groups were the same in all other respects. |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 01/31/2014 07:27
Why is E is a wrong answer?
Posted: 01/31/2014 08:06
Helen Kh, answer E is a good argument, and absent answer D, it would have been a good answer. But answer D is the strongest counter reasoning, since it is arguing that cancer may LOWER the level of enzyme, unlike E which is arguing that the level of enzyme may have been LOW to begin with.