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': 'Fibroids cause infertility and pregnancy wastage because \nSelect and explain. \nA. Inhibit normal ovulation, B. Endometrial inflammation, C. Pressure effect on ovaries, D. Hyperestrogenic state', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fibroids are associated with endometrial inflammation and vascular changes that may disrupt implantation.', 'role': 'assistant'}]