A 55 Yr old smoker presents with history of 5 episodes of macroscopic hematuria each lasting for about 4-5 days in the past 5 yrs. Which of the following investigations should be performed to evaluate the suspected cause: (A) Urine microscopy and cytology, (B) X-Ray KUB, (C) US KUB, (D) DTPA scan
Answer is A. .