This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neoplastic disorders of WBCs, Subject name: Pediatrics
Treatment of ALL includes use of: 
Select and explain. 
A. Vincristine, B. L-asparginase, C. Prednisolone, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Treatment of ALL: -Induction - 4-6 weeks. Drugs used are: Vincristine Anthracycline Prednisolone L- Asparaginase - CNS prophylaxis - Intrathecal Methotrexate +- Radiotherapy - Intensification - Methotrexate, L- Asparaginase, Cyclophosphamide - Maintenance phase - 2-2.5 years - oral 6- MP & Methotrexate.