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': 'The distinct golden colour in transgenic Golden rice is due to presence of \nSelect and explain. \nA. Riboflavin, B. β-carotene, C. Vitamin B12, D. Xanthopyll', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Golden rice:\nVariety of rice produced through genetic engineering to boisynthesize beta carotene, a precursor of vitamin A.\nThe distinct golden colour is due to the beta carotene content.\nIt is indented to produce a fortified food to be grown and consumed in areas with a shortage of dietary vitamin A.\xa0\nGolden rice differs from its parenteral strain by the addition of three beta carotene biosynthesis gene.', 'role': 'assistant'}]