Final answer:
A collapse zone consists of the areas that are exposed to trauma and/or thrust should a building or part of a building collapse. It is an area deemed unsafe due to the potential risks of further collapse or falling debris.
Step-by-step explanation:
The correct answer is a) Collapse zone. A collapse zone consists of the areas that are exposed to trauma and/or thrust should a building or part of a building collapse. It is an area deemed unsafe due to the potential risks of further collapse or falling debris. In emergency situations, it is important to establish a collapse zone to ensure the safety of individuals and prevent further injuries or accidents.