This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
[{'content': 'The haemoglobin cut-off level for determining prevalence of anemia among pregnant women is - \nSelect and explain. \nA. Less than 15g\\/dL, B. Less than 13 g\\/dL, C. Less than 11 g\\/dL, D. Less than 19 g\\/dL', 'role': 'user'}, {'content': "Answer: C \nExplanation: In adult female, pregnant venous blood content of Hb less than 11g/dl is diagnostic of anemia. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 575", 'role': 'assistant'}]