This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Medicine
[{'content': 'Cu deficiency manifests as except- \nSelect and explain. \nA. Hepatic fibrosis, B. Hemolytic anaemia, C. Mental retardation, D. Growth retardation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Copper deficiency causes hemolytic anemia,growth retardation,mental retardation.Wilson disease causes hepatolenticular degeneration by excess deposit of copper. Ref Harrison 20th edition pg 99', 'role': 'assistant'}]