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
Diagnosis of the following karyotyping 
Select and explain. 
A. Down's syndrome, B. Cri du chat syndrome, C. Turner's syndrome, D. Patau Syndrome
B: Cri du chat syndrome
Answer: B: Cri du chat syndrome 
Explanation: Cri du chat syndrome is due to deletion of short arm of 5th Chromosome.