According to the WHO Classification, What Must Be True to Differentiate

Multiple Choice

According to the WHO classification, what must be true to differentiate myelodysplastic syndromes from acute leukemia? In acute leukemia:

A) The blasts must be greater than 20% in the bone marrow.
B) The blasts must be greater than 20% in the bone marrow and contain Auer rods.
C) The bone marrow must contain fibrosis.
D) The blast count is close to 100%.