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Final answer:The incorrect characteristic of Campylobacter jejuni is that it infects the stomach. In reality, it infects the small intestine, not the stomach, and often leads to gastroenteritis with symptoms including fever, diarrhea, and cramps. Hence the correct option is C. infects the stomach.Explanation:The characteristic of Campylobacter jejuni that is incorrect in the provided options is C. infects the stomach. Campylobacter jejuni primarily infects the small intestine, not the stomach, causing gastroenteritis which often includes symptoms like fever, diarrhea, and cramps. It is a gram-negative bacterium and is commonly transmitted through the consumption of contaminated foods such as undercooked chicken, unpasteurized milk, or contaminated water. It possesses darting motility and can result in severe illness and potential complications when untreated, although typically the illness it causes is self-limiting....