The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 65-year-old previously healthy man presents to the primary care physician with the chief complaint of red colored urine over the past month. He states that he does not experience dysuria. On physical exam there is no costovertebral angle tenderness. With this presentation which is the most likely cause of this patient's hematuria?   (A) Bladder tumor   (B) Renal cell carcinoma   (C) Beeturia   (D) Urinary tract infection
['(A) Bladder tumor <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Bladder tumor \n (B) Renal cell carcinoma \n (C) Beeturia \n (D) Urinary tract infection <> possible answers', "  A 65-year-old previously healthy man presents to the primary care physician with the chief complaint of red colored urine over the past month. He states that he does not experience dysuria. On physical exam there is no costovertebral angle tenderness. With this presentation which is the most likely cause of this patient's hematuria? <> context@"]