Lester K. is a 56-year-old male who is being evaluated for nocturia. He reports that he has to get up 2 to 3 times nightly to void. Additional assessment reveals urinary urgency and appreciable post-void dribbling. A digital rectal examination reveals a normal-sized prostate with no appreciable hypertrophy. The best approach to this patient includes: A. Administration of the American Urological Association (AUA) Symptom Scale B. Laboratory assessment to include a PSA C. Ordering a prostate ultrasound D. Assessment of nonprostate causes of nocturia