A Child Is Receiving a Dose of Filgrastim (Neupogen)

A child is receiving a dose of filgrastim (Neupogen) .The parent asks the nurse what this medication is for.What response by the nurse is best?

A) Causes bones that don't usually make blood cells to create them
B) Results in white blood cells being able to live longer
C) Stimulates bone marrow to make more red blood cells
D) Stimulates bone marrow to make more white blood cells