Question ID:PT87 S2 Q5 Passage:One theory concerning the importance of vitamin C in the human diet holds that vitamin C plays a crucial role in the production and maintenance of the body's supply of collagen, an important protein occurring almost exclusively in connective tissue and bones. For this reason, some doctors believe that vitamin C can be useful in treating the symptoms of some common illnesses. Stem:Which one of the following is most strongly supported by the information above? Correct Answer Choice:AChoice A:Some doctors believe that there are illnesses that affect the state of connective tissue or bones. Choice B:Some doctors believe that vitamin C is the only substance that produces and maintains collagen. Choice C:Some doctors believe that strengthening connective tissue and bones increases the body's ability to use certain vitamins. Choice D:Some doctors believe that use of vitamin C is the most effective treatment for certain common illnesses. Choice E:Some doctors believe that any illness that can be ameliorated with vitamin C causes deterioration of connective tissue and bones.