A family of a child just diagnosed with acute lymphoblastic leukemia asks about the child's prognosis. Which of the following is a poor prognostic indicator ?: (A) Presence of mediastinal mass, (B) Age between 1 and 10 years, (C) Hyperploidy with more than 50 chromosomes, (D) WBC count less than 50,000/mm3 at diagnosis
Answer is A. None