This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Physiology
[{'content': 'Motor neuron of spinal cord is? \nSelect and explain. \nA. Unipolar cell, B. Bipolar cell, C. Pseudo-unipolar cells, D. Multi-polar cells', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D Multipolar cellsRef: Ganong, 25th ed. pg. 87Unipolar cellsInvertebrate cellsBipolar cellsBipolar cells of retinaPseudo-unipolar cellsGanglion cell of dorsal rootMulti-polar cellsMotor neuron of spinal cord Pyramidal cell of hippocampus Purkinje cell of cerebellum', 'role': 'assistant'}]