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': 'Nutrient which is lost maximum in polished rice? \nSelect and explain. \nA. Proteins, B. Thiamine, C. Ascorbic acid, D. Calcitriol', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Thiamine Effect of milling on rice The milling process deprives the rice grain of its valuable nutritive elements", 'role': 'assistant'}]