I think it might be flexing. First you tense, which is the flex, then you relax.
Whether we use the 5 step or 7 step model of grief, hurt and inadequacy are not stages in the process-- so we ruled out C and D. Depression typically involves feelings of hopelessness and helplessness-- as if we cannot deal with the loss.
Leukemia is either acute (comes on suddenly) or chronic (lasts a long time). Acute leukemia affects adults and children. Chronic leukemia rarely affects children.