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
Pataus syndrome due to ? 
Select and explain. 
A. Trisomy 21, B. Trisomy 18, C. 18 P, D. Trisomy 13
D: Trisomy 13
Answer: D: Trisomy 13 
Explanation: Ans. is 'd' i.e., Trisomy 13