A 27-year-old woman, after returning home from her honeymoon, has developed urinary frequency, dysuria, and urgency. Her urine is grossly bloody. Which lab data are most likely to define the causal agent?

  •   A gram-positive bacillus grown on a low oxidation-reduction medium
  •  A gram-negative bacterium capable of reducing nitrates to nitrites
  •  An optochin-resistant, catalase-negative, gram-positive coccus
  •  A gram-negative diplococcus, which is oxidase positive but does not ferment maltose
  •   A gram-positive coccus, which is catalase positive and coagulase negative