This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New born infants, Subject name: Pediatrics
[{'content': 'Which major nutrient is richly present in mothers hind milk ? \nSelect and explain. \nA. Fat, B. Protein, C. Carbohydrate, D. Water', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Breast milk is rich in polyunsaturated fatty acids, necessary for myelination of nervous system. It also contains omega 2 and Omega 6 fatty acids which are necessary for formation of prostaglandin and cholesterol, required as base for steroid hormones. Reference: GHAI Essential pediatrics, 8th edition', 'role': 'assistant'}]