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: Radiology
[{'content': 'Feathery appearance in jejunum is due to: \nSelect and explain. \nA. Valvulae conniventes, B. Haustrations, C. Luminal gas, D. Vascular network', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Valvulae conniventes', 'role': 'assistant'}]