According to the ISACA CISA Study Manual (2020), it is important that business owners are involved in the project initiation phase in order to ensure that the project is aligned with the organization's objectives and that the necessary requirements have been identified (p. 183). Therefore, the IS auditor's greatest concern should be that incomplete requirements may have been identified due to the lack of business owner involvement in the project initiation phase.

Section: Protection of Information Assets
Explanation: Execution of the business continuity plan would be impacted if the organization does not know when to declare a crisis. Choices A, C and D are steps that must be performed to know whether to declare a crisis. Problem and severity assessment would provide information necessary in declaring a disaster.
Once a potential crisis is recognized, the teams responsible for crisis management need to be notified.
Delaying this step until a disaster has been declared would negate the effect of having response teams.
Potential crisis recognition is the first step in responding to a disaster.

Section: Protection of Information Assets
Explanation:
A service level agreement (SLA) is a written document, which officially describe the details of services, in non-technical terms, provided by the IT department (internal or external) to its customers. The aim of SLA is to maintain and improve the customer satisfaction to an agreed level.