This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intestine, Subject name: Medicine
[{'content': 'Diverticulosis appearance on barium enema as shown is called: \nSelect and explain. \nA. Saw Tooth Appearance, B. Cork screw appearance, C. Bird of prey appearance, D. Claw sign', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Saw tooth Appearance', 'role': 'assistant'}]