Which of the following statements is true ?

Ans. is 'c' i.e., Acute lymphoid leukemia in less than 1 year has a poor prognosis o Age <1 year and >10 years at the time of diagnosis of ALL is considered an adverse prognosis. o The median age at presentation of CML is approximately 50 years. The incidence of CML increases slowly with age until the middle foies where it stas to rise rapidly. o The median age of onset of hairy cell leukemia is 52 years. o CLL is considered to be mainly disease of the elderly with a median age at diagnosis of 70 years