question: Q:A 23-year-old woman comes to the physician because of vaginal discharge for 3 days. She has been sexually active with three male partners over the past year and uses condoms inconsistently. Her only medication is an oral contraceptive. Physical exam shows thin grayish-white vaginal discharge. There is no erythema of the vaginal mucosa. The pH of the discharge is 5.9. Adding potassium hydroxide (KOH) to a mount containing vaginal discharge produces a fishy odor. Further evaluation of this patient's vaginal discharge is most likely to show which of the following findings?? 
  {'A': 'Pseudohyphae', 'B': 'Gram-variable rod', 'C': 'Spiral-shaped bacteria', 'D': 'Gram-negative diplococci', 'E': 'Flagellated protozoa'},