This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'The least common type of intussuception is \nSelect and explain. \nA. Multiple, B. Colocolic, C. Ileoileal, D. Ileoilecolic', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Multiple", 'role': 'assistant'}]