This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
[{'content': "In Which of the following conditions is cardiac involvement NOT a usual feature? \nSelect and explain. \nA. Facio-scapulo-humeral dystrophy, B. Duchenne's muscular dystrophy, C. Friedreich's ataxia, D. Myotonic dystrophy", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Facioscapulohumeral muscular dystrophy is a disorder characterized by muscle weakness and wasting (atrophy). This condition gets its name from the muscles that are affected most often: those of the face (facio-), around the shoulder blades (scapulo-), and in the upper arms (humeral).no cardiac involvement is seen Ref Harrison20th edition pg 2378', 'role': 'assistant'}]