正解:B
Recovery time objectives (RTOs) are the maximum acceptable time that an organization can be offline or unavailable after a disruption. RTOs are important to maintain integration among the incident response plan, business continuity plan (BCP), and disaster recovery plan (DRP) because they help align the recovery goals and strategies of each plan. By defining clear and realistic RTOs, an organization can ensure that its IT infrastructure and systems are restored as quickly as possible after a disaster, minimizing the impact on business operations and customer satisfaction.
References = CISM Manual, Chapter 6: Incident Response Planning, Section 6.2: Recovery Time Objectives (RTOs), page 971
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