Which of the following polices changed as a result of the problems in the government’s response to hurricane katrina?

i. fema was strengthened.
ii. states can call in the national guard if the president is unable to maintain order.
iii. evacuation plans were created to communities prepare for natural disasters.
iv. a greater focus has been placed on communities with special needs.

a.
i. only
b.
ii. and iii. only
c.
i., iii., and iv. only
d.
i., ii., iii., and iv.