input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 49-year-old man comes to the physician because of a 1-week history of diarrhea and abdominal bloating. His stools are bulky, foul-smelling, and difficult to flush. Over the past 6 months, he has had recurrent dull epigastric pain that is triggered by meals and lasts for a few days. He drinks 6 to 8 beers daily. Abdominal examination shows mild epigastric tenderness with no rebound or guarding. A CT scan of the abdomen is shown. The structure indicated by the arrows is most likely lined by which of the following?   (A) Simple ductal epithelium   (B) Granulation tissue   (C) Pyogenic membrane   (D) Columnar mucinous epithelium
output: ['(B) Granulation tissue <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Simple ductal epithelium  (B) Granulation tissue  (C) Pyogenic membrane  (D) Columnar mucinous epithelium <> possible answers', '  A 49-year-old man comes to the physician because of a 1-week history of diarrhea and abdominal bloating. His stools are bulky, foul-smelling, and difficult to flush. Over the past 6 months, he has had recurrent dull epigastric pain that is triggered by meals and lasts for a few days. He drinks 6 to 8 beers daily. Abdominal examination shows mild epigastric tenderness with no rebound or guarding. A CT scan of the abdomen is shown. The structure indicated by the arrows is most likely lined by which of the following? <> context']