States request assistance from other states through interstate mutual aid and assistance agreements such as: A. Tiered Response B. Emergency Management Assistance Compacts (EMACs) C. Stafford Act D. Economy Act or other applicable authorities

Option B (EMACs) is the correct choice.

Explanation:

EMAC (Emergency Management Assistance) package - all facets of package international cooperation that are at the heart including its country's national protection program. Since before the US-signed Civil Defense as well as Disaster Treaty dated 1950.A robust and transparent system that requires states provinces contribute personnel, equipment, and services to help neighboring states respond and rehabilitate provides aid in conflicts or relief organizations proclaimed by the Governor.

Other examples offered are not relevant to either the theory in question. So that the option described will be the right one.