9. when an incident expands a. all functions of the command and general staff are filled and the entire list of elements within each section. b. functions and positions remain the same throughout the incident regardless of expansion. c. all functions of the command and general staff must be filled. d. only the functions and positions necessary are filled.

Incident Command System or the ICS  is a method to direct, guide and regulate the emergency response.

The correct answer is:

Option D. only the functions and positions necessary are filled.

This can be explained as:

Therefore, when an incident expands, only the functions and positions necessary are filled.

To learn more about Incident Command System (ICS) refer to the link given below:

link

The answer is letter D, only the functions and positions necessary are filled.

Explanation:

The statement above is related to the "Incident Command System." This system is a management concept that allows users to follow an organizational structure when responding to incidents (naturally-caused or -human-caused).

An "effective incident response" is necessary in order to prevent the damage caused by poor incident response efforts.

The incident command system is very flexible. It can expand and contract depending on the need of the situation. When an incident expands, only the functions and positions necessary are filled. For example, when one role is vacant, the role above it will fill it. It largely depends on the incident, whether it is big or small.

Thus, this explains the answer.

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