This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
All of the following are good prognostic factors for childhood ALL except- 
Select and explain. 
A. Female sex, B. Hyperdiploidy, C. t(12:21) translocation, D. Pre B cell ALL
A: Female sex
Answer: A: Female sex 
Explanation: Favorable prognostic marker for ALL includes Age between 2 and 10 years A low white cell cout Hyperdiploidy Trisomy of chromosomes 4,7,10 Presence of a t (12;21) seen in pre B cell ALL Reference : Robbins and Cotran Pathologic basis of disease.South Asia Edition volume 1.page no. 592