A 28-year-old woman with dysuria and frequency, afebrile, no flank pain, not pregnant. UA positive for leukocyte esterase and nitrites. No allergies. Best first-line therapy and duration?ANitrofurantoin 100 mg orally twice daily for 5 daysBCiprofloxacin 500 mg orally twice daily for 7 daysCAmoxicillin 500 mg orally three times daily for 7 daysDMetronidazole 500 mg orally twice daily for 7 daysELevofloxacin 750 mg orally daily for 5 daysCheck my answer