Critical Reasoning (CR) | Re: Doctor: Some well-known figures in the medical community have begun to

It should be C.
If people with ulcerative colitis can’t digest vitamin-rich foods, then they can’t get the same benefit from the food as other people do. Therefore, the doctor’s argument breaks down - if vitamin-rich foods and vitamin supplements have the same efficacy but a patient can take vitamins but not foods, then the supplements are more effective in that situation.

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