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': 'Jelly formed around the hea tube during early development, contributes to the formation of: \nSelect and explain. \nA. Pericardium, B. Mesocardium, C. Myocardium, D. Endocardium', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Myocardium Dorsal mesocardium forms transverse pericardial sinusQ; somatopleuric mesoderm forms parietal pericardiumQ; splanchnopluric mesoderm forms myocardium & conduction system of heas (i.e. Purkinje fibers) Q; neural creast cells form subpulmonary infundibulumQ.Cardiac jelly forms endocardial cushion and myocardiumQ', 'role': 'assistant'}]