<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 76-year-old woman presents to the primary care physician for a regular check-up. History reveals that she has had episodes of mild urinary incontinence over the past 2 years precipitated by sneezing or laughing. However, over the past week, her urinary incontinence has occurred during regular activities. Her blood pressure is 14090 mm Hg, heart rate is 86min, respiratory rate is 22min, and temperature is 37.7C 99.9F. Physical examination is remarkable for suprapubic tenderness. Urinalysis reveals 15 WBCsHPF, positive nitrites, and positive leukocyte esterase. Which of the following is the best next step for this patient?? A: Ultrasound scan of the kidneys, urinary tract, and bladder, B: Cystoscopy, C: Urine culture, D: Pelvic floor muscle training, E: Reassurance,  <response>: This is a patient with worsening urinary incontinence and evidence of a urinary tract infection based on the urinalysis results showing leukocytes, nitrites, and leukocyte esterase. The key findings are the worsening urinary incontinence in an elderly female patient along with evidence of a UTI on urinalysis. This indicates the need to identify the source of infection and determine if there are any anatomical abnormalities contributing to the incontinence.Choice A for ultrasound could identify anatomical abnormalities but does not identify the causative organism. Choice B cystoscopy is invasive and not indicated as an initial step. Choice D pelvic floor training may help with incontinence but does not address the infection. Choice E reassurance alone is inadequate. The best next step is choice C to obtain a urine culture to identify the organism causing the UTI and guide appropriate antibiotic treatment. This will both treat the infection and help determine if the infection is contributing to the worsening incontinence.C: Urine culture 