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: Orthopaedics
[{'content': 'True about nutritional rickets -a) Craniotabesb) Multiple #c) Widening of wristd) ↓ Phosphate in serume) Growth retardation \nSelect and explain. \nA. acde, B. bde, C. abcd, D. abde', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Craniotabes, widening of wrist and growth retardation occur in rickets.\nSerum phosphate is low.', 'role': 'assistant'}]