Final answer:
The two sub-steps in Step 3 of evaluating a threat involve listing known information, such as the type of radiation, energy per event, activity, and mass of tissue, and then developing specific questions to assess unique characteristics of the threat or situation.
Step-by-step explanation:
The two sub-steps in Step 3 of evaluating the threat involve the identification of known variables and the assessment of the situation based on that information. First, you should make a list of what is given or can be inferred from the problem, which includes looking for information on the type of radiation, the energy per event, the activity, and the mass of tissue affected. Secondly, you compare those characteristics with what is unique about the subgenre or situation at hand, and develop questions that help to assess those characteristics.
In the context of a secondary appraisal for a threat, such as the perception of potential breast cancer, the judgment of available coping options and the effectiveness of those options are evaluated. One individual might see it as catastrophic while another might consider effective medical options available and feel less threatened. Similarly, evaluating potentially catastrophic threats with asymmetric risks, planning for mitigation can be viewed as insurance against low-probability but devastating events.