This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Anatomy
[{'content': 'Which of the following cancer is least associated with genetic and familial causes \nSelect and explain. \nA. Ovarian, B. Prostate, C. Lung, D. Breast', 'role': 'user'}, {'content': 'Answer: C \nExplanation: .', 'role': 'assistant'}]