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': 'True statement for axial flap is : \nSelect and explain. \nA. Carries its own vessels within it, B. Kept in limb, C. Transverse flap, D. Carries its own nerve in it', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A flap is a partially or completely isolated segment of tissue with its own blood supply.\nA graft does not carry its own blood supply, but is completely dependent on early diffusion & late ingrowth of vessels from the recipient’s bed.', 'role': 'assistant'}]