Medicine Which of the following is a poor prognostic factor in Acute Lymphoblastic Leukemia (ALL): A Hyperdiploidy B t (9; 22); t (4; 11) C 2-8 years of Age D WBC count < 50,000 💡 Explanation Which of the following is a poor prognostic factor in Acute Lymphoblastic Leukemia (ALL): ✓ Correct Answer: B. t (9; 22); t (4; 11)