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': 'Joint position and viberation is carried by: \nSelect and explain. \nA. A-alfa, B. A-beta, C. Both, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A-alfa fibers are associated with proprioception and lower motor neurons They are myelinated fibers Ref:Guyton and Hall textbook of medical physiology 12th edition,page number: 73', 'role': 'assistant'}]