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: Pathology
[{'content': 'Cri du chat syndrome involve: \nSelect and explain. \nA. Chromosome 13, B. Chromosome 18, C. Chromosome 22, D. Chromosome 5', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cri du chat (named after cry of infant like that of a cat) syndrome occurs due to deletion of short arm of chromosome 5.\nMohan H. Textbook of pathology. Jaypee Brothers Medical Publishers; 2015. Edition 7. Page 254', 'role': 'assistant'}]