What was the most dramatic event during Hurricane Katrina that condemned the city of New Orleans to broad destruction?
A.
The winds unexpectedly changed direction and shifted the storm’s path.
B.
The levees on the 17th Street Canal gave way, which led to massive flooding.
C.
The mayor of New Orleans issued mandatory evacuation to the wrong part of town.
D.
The hurricane hit New Orleans very unexpectedly, allowing little time for evacuations.