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: Physiology
[{'content': 'Group B nerve fibres area) Sympathetic preganglionicb) Sympathetic postganglionicc) Parasympathetic preganglionicd) Parasympathetic post ganglionic \nSelect and explain. \nA. a, B. bc, C. ac, D. b', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Types of nerve fibers\nA fibers are fast fibers.\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Aα- Somatic motor to extrafusal fibers of muscle spindle, proprioception\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Aβ- Kinesthetic, pressure and touch\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Aγ- Motor to intrafusal fibers of muscle spindle\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Aδ- \xa0Pain, temperature, touch and pressure\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 B fibers- Autonomic preganglionic (Myelinated)\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 C fibers- Pain, temperature, autonomic postganglionic (mainly sympathetic)', 'role': 'assistant'}]