People Who Undergo Radiation Therapy Sometimes Develop Anemia Resulting from a Decreased

People who undergo radiation therapy sometimes develop anemia resulting from a decreased production of red blood cells.This is because the radiation is:

A) having an affect on the spongy bone.
B) having an affect on the osteoblasts.
C) having an affect on the metaphysis.
D) having an affect on the melanocytes.
E) having an affect on the keratinocytes.