This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Axon hillock is a pa of \nSelect and explain. \nA. Cell body, B. Axon, C. Dendrites, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Though the name is axon hillock ,it is a pa of cell body It marks the beginning of axon Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:676', 'role': 'assistant'}]