This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vermiform Appendix, Subject name: Surgery
[{'content': 'Most common type of appendix is \nSelect and explain. \nA. Retrocecal, B. Pelvic, C. Retrocolic, D. Subhepatic', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a (Retrocecal). (Ref. Bailey and Love, 25th/pg.l205)Vermiform appendix is a muscular tubular structure arising from caecum.Its various positions include:Retrocaecal74%Pelvic21%Paraceacal2%Sub-caecal1.5%Preileal1%Postileal0.5%The appendicular artery is branch of lower division of iliocolic artery.', 'role': 'assistant'}]