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': 'DNA epairs defect associated with malignancy in - \nSelect and explain. \nA. Xeroderma pigmentosum, B. Icthyosis, C. Mosaicism, D. ??', 'role': 'user'}, {'content': 'Answer: A \nExplanation: . Xeroderma pigmentosum', 'role': 'assistant'}]