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: Gynaecology & Obstetrics
[{'content': 'Red degeneration of uterine fibroid : \nSelect and explain. \nA. Is aseptic infarcation, B. Only occurs in pregnancy, C. Causes leucopenia with lymphocytosis, D. Is due to emboli occluding the major blood vessels supplying the myoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Is aseptic infarcation', 'role': 'assistant'}]