African Americans with Kidney Disease Are More Likely to Die

African Americans with kidney disease are more likely to die than whites with the disease because

A) fewer African Americans are referred to transplant programs.
B) drugs developed for white Americans don't work as well on African Americans.
C) African Americans are less likely to want treatment.
D) for genetic reasons, African Americans have naturally weaker kidneys.
E) African Americans don't push hard enough to get treatment.