QUESTION TEXT: An ingredient in marijuana known as THC…
QUESTION TYPE: Weaken
CONCLUSION: Marijuana can cause cancer.
REASONING: In experiments, THC inactivated herpes. Other experiments found that inactivated herpes can make healthy cells cancerous.
ANALYSIS: We don’t know many details about these experiments. Were the cells human? Will THC affect herpes the same way when a human is infected with herpes?
___________
- This would strengthen the argument by showing that the experiments were valid.
- CORRECT. THC is dangerous on its own, but in marijuana there are other ingredients that remove the danger. (The conclusion was about marijuana.)
- This increases the danger from THC. This information definitely doesn’t weaken the argument.
- That’s nice. But in marijuana, the structure of THC isn’t modified. Presumably it’s still dangerous.
- This has nothing to do with whether THC can cause cancer in patients who do have the herpes virus.
Free Logical Reasoning lesson
Get a free sample of the Logical Reasoning Mastery Seminar. Learn tips for solving LR questions
Leave a Reply