正解:A
A business impact analysis (BIA) is the process of identifying and evaluating the potential effects of disruptions to critical business functions or processes. A BIA helps to determine the recovery priorities, objectives, and strategies for the organization in the event of a disaster or crisis. A BIA also helps to identify the worst-case disruption scenarios, which are the scenarios that would cause the most severe impact to the organization in terms of financial, operational, reputational, or legal consequences. By conducting a BIA, the organization can assess the likelihood and impact of various disruption scenarios, and plan accordingly to mitigate the risks and ensure business continuity and resilience. References = CISM Review Manual 15th Edition, page 181, page 183.