Newspaper article: People who

Answer choices

1. A

   Out of Scope5% picked this

   Vitamin C taken in the form of supplements has a different effect on the body than does vitamin

   The argument does not consider vitamin C taken in food.

   5%
2. B

   Unclear Impact33% picked this

   The reduction in risk of heart disease due to the consumption of vitamin C is no greater than the reduction due

   The fact that other dietary changes could also reduce risk of heart disease doesn't weaken the argument. We would have to know that most of the population is doing these other dietary changes, in order to use this answer to argue that people who take vitamin C supplements aren't healthier than average. We'd be saying, "Sure, they take vit C supplements, which lowers their risk of heart disease, but most of the people who don't take vit C supplements cut fat and cholesterol out of their diets, which lowers their risk of heart disease. So ppl who take vit C supplements are probably just average health." But since we don't know what proportion of the population does these "certain other dietary changes", we can't judge how vitamin C people's health compares to average health.

   33%
3. C

   Too Weak2% picked this

   Taking both vitamin C supplements and vitamin E supplements lowers one's risk of heart disease far more than

   That another approach is more effective at reducing one’s risk of developing heart disease does not reduce the likelihood that people who take vitamin C supplements tend to be healthier than average.

   2%
4. D

   Correct59% picked this

   High doses of vitamin C supplements tend to reduce slightly one's resistance to certain

   Why this is right

   This introduces something other than heart disease to consider. If one was more vulnerable to infectious diseases, the claim that those who consume vitamin C tend to be healthier would be less likely to be true.

   Skill tested: Weaken · how this choice captures the argument's function is the move to repeat next time.

   59%
5. E

   Strengthen0% picked this

   Taking vitamin C supplements has been found to lower one's risk

   This makes it more likely that those who take vitamin C supplements tend to be healthier than average.

   0%