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': 'Infant with double aoic arch presents with ? \nSelect and explain. \nA. CATCH 22, B. Digeorge syndrome, C. Velo-cardio-facial syndrome, D. All of above', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., CATCH 22 CATCH 22 stands for - Cardiac defect - double arch aoa. VSD, pulmonary atresia. Abnormal facies Thymic hypoplasia Cleft palate Hypocalcemia", 'role': 'assistant'}]