A business impact analysis begins by identifying business processes and determining their criticality, dependencies, impacts of disruption, recovery priorities, recovery time objectives, and recovery point objectives. Identifying business processes is a core BIA step because recovery planning cannot be effective until the organization understands which processes are essential and what resources support them. Staffing alternatives, recovery solutions, recovery sites, and alternative sourcing are later continuity and recovery strategy decisions based on BIA results. Internal auditors should evaluate whether the BIA includes all significant processes, considers operational and financial impacts, and is updated when business conditions change. Therefore, Option C is correct.