QUESTION TEXT: One theory concerning the importance of vitamin…
QUESTION TYPE: Most Strongly Supported
FACTS:
1. Vitamin C is important for producing and maintaining collagen.
2. Collagen is a protein in bones and connective tissue.
3. Because of facts 1 and 2, some doctors believe that vitamin C can help treat symptoms of common illnesses.
ANALYSIS: The key in this question will be figuring out the link between fact 3 and facts 1 and 2. Why do these two facts lead some doctors to believe that vitamin C could alleviate symptoms of common illnesses?
It must be something the vitamin C does. We are told that vitamin C is crucial in the production and function of collagen. So we can predict that the doctors are using vitamin C to treat collagen deficiencies or similar problems. And because collagen is found almost exclusively in bone and connective tissue, we can deduce that these problems exist in those areas.
___________
- CORRECT. Vitamin C is important for collagen, which almost exclusively exists in bones and connective tissue. So if some doctors think vitamin C can treat symptoms of some illnesses, they must think there are some illnesses that affect those areas.
- We know that vitamin C plays a crucial role, but none of the information suggests that any doctors think it is the only substance that produces or maintains collagen.
- This answer is a bit backwards. Vitamin C is important for collagen, which appears in these areas of the body, but as far as we know this is a one-way cause and effect. The passage never refers to the body’s ability to use any vitamins.
- We know that some doctors believe that vitamin C can be a useful treatment, but “most effective” is stretching it further than we have reason to believe. The argument never addresses the efficacy of other treatments.
- This answer takes a logical misstep. Vitamin C is important for collagen, but this doesn’t mean that vitamin C only works with collagen. There may be other functions.
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