An emergency department physician ordered a culture and sensitivity test on a catheterized urine specimen obtained from a 24-year-old female patient. A colony count was done and gave the following results after 24 hours: Blood agar plate = >100,000 col/mL of gram-positive cocci resembling staphylococci MacConkey agar = No growth CNA plate = Inhibited growth Hemolysis = Neg Catalase = Positive Novobiocin = Resistant This isolate is:
A. Staphylococcus saprophyticus
B. Micrococcus luteus
C. Staphylococcus aureus
D. Streptococcus pyogenes