Final answer:
The correct option is D. Hazard and risk assessment, as it is the process of evaluating all the potential hazards and risks associated with an incident, to inform the response strategy effectively.
Step-by-step explanation:
The question being asked relates to the procedures and considerations involved in emergency response and incident management. Analyzing the given options, A. Initial size-up refers to the immediate assessment made by the first responders upon arriving at an incident scene. A size-up will involve assessing the situation and beginning to form a plan of action, but it does not necessarily include a detailed evaluation of all factors. B. Strategic goal is more about setting a long-term objective for an incident response rather than considering all immediate variables. C. Tactical objective refers to the specific steps taken to achieve a strategic goal in an incident's response. D. Hazard and risk assessment, on the other hand, is the process wherein responders evaluate all aspects of the incident including the potential hazards and the risks to responders and the public.
Given the context of the question and the explanation provided in Figure 20.1 which discusses choosing between different plans based on the risk assessment of a potential threat, the final answer that involves considering all factors that will affect an incident and response is D. Hazard and risk assessment. This process is about analyzing all possible dangers and evaluating the risks associated with them, thereby ensuring an informed response to the incident.
The correct option is D. Hazard and risk assessment, which requires evaluating all potential hazards and risks to ensure that any response plan is well-informed and that all factors affecting the incident have been considered.