Answer:
A. Chain of Command and Unity of Command
Step-by-step explanation:
NIMS is a government organization that works at the local and state level in managing emergency situations. This organization, equipped with a set of methods and equipment, aims to take a quick response to find an effective solution to the country's emergency incidents, such as large-scale disasters, where NIMS seeks to help the population by raising funds, obtaining medicines, doctors, firefighters , among others.
The Chain of Command and Unity of Command is the management feature of NIMS that helps eliminate confusion caused by conflicting instructions, if they occur.