Final answer:
The correct answer is 3) Cost pool. A cost pool is a grouping of individual indirect cost items that are similar or related to each other.
Step-by-step explanation:
The correct answer is 3) Cost pool. A cost pool is a grouping of individual indirect cost items that are similar or related to each other. It is a way to collect and accumulate costs from various sources, such as different departments or activities, to allocate them to specific cost objects.