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': 'Malignancy with familial inheritence -a)  Ca breastb)  Ca ovaryc)  Ca testisd)  Ca panreas \nSelect and explain. \nA. ab, B. a, C. ad, D. bc', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]