This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Antepartum Haemorrhage, Subject name: Gynaecology & Obstetrics
[{'content': 'Placenta previa is characterized by all except: \nSelect and explain. \nA. Painless bleeding, B. Causeless bleeding, C. Recurrent bleeding, D. Presents after first trimester', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is d, i.e. Present after first trimesterRef Dutta Obs. 7/e, a 243Antepartum hemorrhage is defined as bleeding from or into the genital tract after the period of viability and but before the birth of the baby (the first and second stage of labor included). Hence option d is incorrect.', 'role': 'assistant'}]