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': 'Among the following which has the highest quantity of retinol per 100g of fruit? \nSelect and explain. \nA. Papaya, B. Orange, C. Ripe mango, D. Tomato', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Papaya contain 118mcg,orange contain 25mcg,tomato contain 84mcg,mangi contain 313mcg of retinol per 100g', 'role': 'assistant'}]