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: Pediatrics
[{'content': 'Earlier manifestation of Rickets is- \nSelect and explain. \nA. Craniotabes, B. Rachitic rosary, C. Harrison groove, D. Pigeon chest', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is `a' i.e., CraniotabesCraniotobes is the earliest manifestation of Rickets.", 'role': 'assistant'}]