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': 'The heart is made up of which type of muscle \nSelect and explain. \nA. Skeletal muscle, B. Smooth muscle, C. Cardiac muscle, D. none', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cardiac muscle forms the heart and is the only place in the animal’s body where it can be found.', 'role': 'assistant'}]