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': 'Hegar sign can be elicited in : \nSelect and explain. \nA. Early pregnancy, B. Late pregnancy, C. During labour, D. During puerperium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Early pregnancy', 'role': 'assistant'}]