A 23-Year-Old Male Develops Folliculitis After Spending the Afternoon in the Hot

A 23-year-old male develops folliculitis after spending the afternoon in the hot tub at a ski resort. The ski resort physician submits a swab of the pustular discharge for culture. The organism isolated grew as an oxidase-positive, non-lactose fermenter. It is beta-hemolytic on sheep blood agar with a cyan-colored pigment in the surrounding medium and emits a fruity odor. These culture results

A) are adequate to presumptively identify the organism as Pseudomonas aeruginosa.
B) require additional biochemical testing to definitively identify the organism.
C) are not needed because the organism is an environmental contaminant.
D) also require viewing the organism under an ultraviolet light.