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: Anatomy
[{'content': 'Intercalated disc is present in: \nSelect and explain. \nA. Cardiac muscle, B. Smooth muscle, C. Skeletal muscle, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. i.e. Cardiac muscle', 'role': 'assistant'}]