Under the stafford act
a. the secretary of homeland security is responsible for coordinating government response efforts.
b. the president may designate an incident as either an "emergency" or a "major disaster."
c. the fema administrator may assume the authorities of local, tribal, and state authorities on a temporary basis.
d. the federal government may provide unlimited federal assistance to jurisdictions.

(B)

Under the Stafford Act, the President may designate an incident as either an "emergency" or a "major disaster."

Explanation:

The Stafford Act allows the President to classify an incident that has occurred, or is about to occur, as either a "major disaster" or an "emergency".

This only occurs if the state in which the incident happens is not capable of handling the incident on its own.

After such a declaration, the Federal government can then render assistance to those affected in form of disaster relief materials or funds.

your answer would b. the missisipi river

hope i you : )