Which Statement Accurately Describes Induction Therapy for Acute Lymphocytic Leukemia

Which statement accurately describes induction therapy for acute lymphocytic leukemia (ALL) ?

A) Induction therapy is an intensive protocol of chemotherapy in high doses to achieve remission.
B) Induction therapy is a long-term protocol with smaller doses of chemotherapy to achieve a cure.
C) Induction therapy is a 2- to 5-year low-dose chemotherapy regimen to reduce painful symptoms.
D) Induction therapy is a combination of chemotherapy and radiation to achieve remission.