This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
[{'content': 'Severity of Aoic stenosis is determined by ? \nSelect and explain. \nA. Late ejection systolic murmur, B. ST-T changes, C. LV Hyperophy with displaced apex, D. All the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Severity of aoic stenosis is determined by late ejection systolic murmur, LVH,ST-T changes. Ref : Ghai essential of pediatrics, eighth edition, p.no:430', 'role': 'assistant'}]