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: Skin
[{'content': 'Etiology of Epidermolysis bullosa is ? \nSelect and explain. \nA. Genetic, B. Infections, C. Senile, D. Malignant', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. i.e. Genetic', 'role': 'assistant'}]