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': 'Postpartum decidual secretions present are referred to as: \nSelect and explain. \nA. Lochia, B. Bleeding per vaginum, C. Vasa-previa, D. Decidua-capsualris', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]