On a Physical Examination for Employment, a 45-Year-Old Male Shows

On a physical examination for employment, a 45-year-old male shows no significant findings and takes no medications. Past medical history and surgery are unremarkable. On urinalysis, hematuria is present. The urinalysis is repeated on another day and still reveals microscopic hematuria. It is important to recognize that painless hematuria can be diagnostic of:

A) Urinary tract infection
B) Bladder cancer
C) Nephrolithiasis
D) Pyelonephritis