Which statement best defines chain of command and unity of command?

Which statement best defines chain of command and unity of command?

• A. Chain of command is informal; unity of command is optional.
• B. Chain of command is the formal line of authority; unity of command ensures one supervisor per assignment; both ensure clear accountability and coordination.
• C. They apply only to non-emergency settings.
• D. They can be ignored during incidents.

Answer: (B)