Answer:
A. State/tribal emergency operations center (EOCs)
Step-by-step explanation:
"Multiagency Coordination Systems (MACS). MACS define the operating characteristics, interactive management components, and organizational structure of supporting incident management entities engaged at the Federal, State, local, tribal, and regional levels through mutual-aid agreements and other assistance arrangements. MACS include a combination of facilities, equipment, personnel, and procedures integrated into a common system with responsibility for coordination of resources and support to emergency operations."
Reference: FEMA. “Lesson 1: Introduction and Course Overview.” Course Summary, 2019