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': 'Sho structured primi gravida has height less then \nSelect and explain. \nA. 140 cm, B. 145 cm, C. 150 cm, D. 135 cm', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 140 cm', 'role': 'assistant'}]