Answer:
a. Because incident details are often unknown at the start, command should not be established until after the Incident Action Plan has been developed.
The command should be established as soon as possible in order to facilitate communication between operational and support processes.
b. Unity of command means that every individual is accountable to and reports to only one designated supervisor.
Unity of command is one of the most basic and fundamental pillars of military and civilian operations since an individual should only follow the instructions and respond to one supervisor.
c. Chain of command restricts personnel from communicating or sharing information outside their organizational units.
The chain of command is set up in order to avoid confusion and to allow a better and more organized flow of information, but that doesn't mean that personnel can communicate with each other and require information from each other.
