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': 'Composition of toned milk is approximately close to: \nSelect and explain. \nA. Cow, B. Buffalo, C. Human, D. Goat', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Toned milk is a blend of natural milk and made up milk. It contains 1 pa water, 1 pa natural milk and 1/8 th pa of skimmed milk powder. It has composition almost equivalent to cow milk. Ref: Park, 22nd edition pg: 584', 'role': 'assistant'}]