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: Social & Preventive Medicine
[{'content': 'Which line of death certificate represents the major antecedent cause of death \nSelect and explain. \nA. la, B. lb, C. lc, D. ll', 'role': 'user'}, {'content': 'Answer: C \nExplanation: International death certificate\n\nThe basis of mortality data is death certificate.\nFor ensuring national and international comparability,\xa0it is necessary to have a uniform and standardized system of recording and classifying deaths.\nFor this purpose, WHO has recommended international death certificate,\nConsist of four lines: \nLine Ia: Disease or condition directly leading to death \nLine Ib:\xa0Antecedent/underlying cause \nLine Ic: Main antecedent/underlying cause \nLine II:\xa0Other significant conditions contributing to death but not related to disease/condition causing it\nExample of a death cerficate: Line la: Renal failure. Line lb: Diabetic nephropathy. Line Ic:\xa0Diabetes mellitus. Line II:\xa0Hypertension\nConcept of underlying cause, Line Ic is the most important line in death certificate, thus also known as ‘Essence of Death Cerficate’', 'role': 'assistant'}]