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: Anatomy
[{'content': 'Appendix posses: \nSelect and explain. \nA. Taeniae coli, B. Appendicis epiploicae, C. Sacculations, D. Mesentery', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Mesentery', 'role': 'assistant'}]