This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fetal Skull and Maternal Pelvis, Subject name: Gynaecology & Obstetrics
[{'content': 'Triradiate pelvis is see in: \nSelect and explain. \nA. Rickets, B. Chondrodystrophy, C. Osteoporosis, D. Hyperparathyroidism', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is c, i.e. OsteoporosisOsteomalacia or deficiency of Calcium and Vitamin D shows triradiate pelvis. Since osteomalacia is not given here we are going for osteoporosis.', 'role': 'assistant'}]