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': 'Among the following which has the highest quantity of retinal per 100 g of fruit ? \nSelect and explain. \nA. Papaya, B. Orange, C. Ripe mango, D. Tomato', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Ripe mango", 'role': 'assistant'}]