This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small & Large Intestine, Subject name: Surgery
[{'content': 'False about appendicitis in children: \nSelect and explain. \nA. Localized pain is the single most important symptom, B. Vomiting precedes abdominal pain, C. Perforation occurs in 80% of cases <5 years, D. 60% perforation occurs within 48 hours', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. (b) Vomiting precedes abdominal painRef: Sabiston 19th edition, Page 1280* As per Murphy's Triad -- the order of symptoms are:* Migratory pain* Vomiting* Fever", 'role': 'assistant'}]