When an incident expands ________________________________.

A. Functions and positions remain the same throughout the incident regardless of expansion.

B. Only the functions and positions necessary are filled.

C. All functions of the Command and General Staff must be filled.

D. All functions of the Command and General Staff are filled and the entire list of elements within each Section.

Answer:- D. All functions of the Command and General Staff are filled and the entire list of elements within each Section.

When an incident expands only the functions and positions necessary are filled. When an incident expands, the Incident Command System (ICS) may need to be expanded to accommodate the increased size and complexity of the incident. However, not all functions and positions of the ICS need to be filled. Only the functions and positions that are necessary to effectively manage the incident should be filled.