How did Hurricane Katrina lead to renewed concerns over civil rights in the United States?

How did Hurricane Katrina lead to renewed concerns over civil rights in the United States?

a. Government response was swift and extensive and most of the victims were poor African Americans.
b. The government was slow to respond and most of the victims were poor African Americans.
c. Government response was swift and extensive and most of the victims were affluent whites.
d. The government was slow to respond and most of the victims were affluent whites.