This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Physiology & Histology, Subject name: Gynaecology & Obstetrics
[{'content': 'The most serious complication of clomiphene therapy for induction of ovulation is: \nSelect and explain. \nA. Bone marrow depression, B. Hyperstimulation syndrome, C. Secondary amenorrhea, D. Multiple pregnancy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is b, i.e. Hyperstimulation syndromeRef: Shaw 15th/ed, p315Ovarian hyperstimulation syndrome is the most dreaded complication of Clomiphene.', 'role': 'assistant'}]