Fermentation products produced by the skin-colonizing bacterium Staphylococcus epidermidis benefit humans in which of the following ways? A)  Mucus is dissolved by these fermentation products B)  Pathogens are destroyed by this bacterium through phagocytosis C)  These products bind to receptors and interfere with viral infections D)  They reduce the pH to values less hospitable to pathogens E)  This acid consumes nutrients

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