Question ID:PT72 S3 Q1 Passage:Dentist: I recommend brushing one's teeth after every meal to remove sugars that facilitate the growth of certain bacteria; these bacteria produce acid that dissolves minerals in tooth enamel, resulting in cavities. And when brushing is not practical, I recommend chewing gum‚ even gum that contains sugar‚ to prevent the formation of cavities. Stem:Which one of the following, if true, would most help to reconcile the dentist's apparently paradoxical recommendations? Correct Answer Choice:CChoice A:A piece of chewing gum that contains sugar contains far less sugar than does the average meal. Choice B:Tooth decay can be stopped and reversed if it is caught before a cavity develops. Choice C:Chewing gum stimulates the production of saliva, which reduces acidity in the mouth and helps remineralize tooth enamel. Choice D:Sugars can be on teeth for as long as 24 hours before the teeth-damaging bacteria whose growth they facilitate begin to proliferate. Choice E:Chewing gum exercises and relaxes the jaw muscles and so contributes to the overall health of the oral tract.