This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pediatrics
Which of the following is not compatible with life? 
Select and explain. 
A. OX, B. XX, C. OY, D. XXX
C: OY
Answer: C: OY 
Explanation: Single Y chromosome is not compatible with lifeXX is normal female genotypeOX is Turner syndrome genotypeXXX is Triple X syndrome genotype(Refer: OP Ghai's Textbook of Pediatrics, 8th edition, pg no. 611)