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
Most common aneuploidy compatible with life is 
Select and explain. 
A. Down syndrome, B. Turner syndrome, C. Klinefelter's syndrome, D. Patau syndrome
A: Down syndrome
Answer: A: Down syndrome 
Explanation: Answer- A, Down syndromeMost common aneuploidy in which infant can survive is trisomy-21 (Down syndrome)