On Admission,a Child with Leukemia Has Widespread Purpura and a Platelet

On admission,a child with leukemia has widespread purpura and a platelet count of 19,000/mm³.The priority nursing intervention is:

A) assessing neurological status.
B) inserting an intravenous line.
C) monitoring vital signs during platelet transfusions.
D) providing family education about how to prevent bleeding.