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: Pathology
[{'content': 'Target fibres are characteristicaly seen in a muscle biopsy of- \nSelect and explain. \nA. Dermatomyositis, B. Motor neuron disease, C. Myaesthenia gravis, D. Drug induced myopathy', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Motor neuron disease Target fibers During denervation atrophy there is cytoskeletal reorganization of some muscle cells, which results in a rounded zone of disorganized filaments in the center of the fiber (target fiber). o Amongst the given options only motor neuron disease can result in denervation of the muscle", 'role': 'assistant'}]