This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other hea diseases in children, Subject name: Pediatrics
[{'content': 'A 3-month-old child has a typical mewing cry and a congenital hea disease. The most probable chromosomal abnormality is: \nSelect and explain. \nA. 5q-, B. 5p-, C. 4p-, D. 9p-', 'role': 'user'}, {'content': 'Answer: B \nExplanation: --> Cat cry with congenital hea disease in an infant suggests Cri du chat syndrome CRI DU CHAT SYNDROME: Caused d/t Chromosome 5p deletion. Hence called as 5p minus syndrome Aka Cat Cry Syndrome --> as these infants presents with high-pitched cry that sounds like that of a cat. Associated with VSD, PDA, ASD', 'role': 'assistant'}]