This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'The most common type of intussuception is \nSelect and explain. \nA. Multiple, B. Colocolic, C. Ileoileal, D. Ileoilecolic', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .It is telescoping or invagination of one poion (segment) of bowel into the adjacent segment. Types 1. Antegrade--Most common. 2. Retrograde--Rare (jejunogastric in gastrojejunostomy stoma). In elderly intussusception: * Colocolic is most common type * Apex is formed usually by growth * No role of hydrostatic reduction * It can be single or multiple (rare). * It can be ileo-colic (most common type, 75%), colocolic, ileoileocolic, colocolic. *It is common in weaning period of a child (common in male), between the period of 6-9 months. ref:SRB&;S manual of surgery,ed 3,pg no 863', 'role': 'assistant'}]