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': 'Body Mass Index is expressed as: March 2012, March 2013 (c, g) \nSelect and explain. \nA. Gram/metre2, B. Gram/ centimetre2, C. Kilogram/ metre2, D. Kilogram/centimetre2', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans: C i.e. Kilogram/ metre2 Body Mass Index is defined as the weight in kilograms divided by the square of the height in metres (Kg/m2)', 'role': 'assistant'}]