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: Medicine
Poorest prognosis in AML is seen in which cytogenetic abnormality - 
Select and explain. 
A. Monosomy 7, B. No cytogenetic abnormality, C. t (15, 17), D. inv. 16
A: Monosomy 7
Answer: A: Monosomy 7 
Explanation: None