B i think is the correct one
There are four main types of unemployment in an economy—frictional, structural, cyclical, and seasonal—and each has a different cause. Frictional unemployment. Frictional unemployment is caused by temporary transitions in workers' lives, such as when a worker moves to a new city and has to find a new job.
Answer:
An activity-based approach refines a costing system by focusing on individual activities as the fundamental cost objects. It uses the cost of these activities as the basis for assigning cost objects such as products or services.
Explanation:
This is a costing system that works by allocating costs to different cost items based on the activity level of these items. This as opposed to traditional costing methods, assigns indirect or overhead cost to products or services less arbitrarily through identifying products or services with most activity or less activity and allocating costs to them based on this measurement.
Where is it? Why is it there? What are the consequences of its being there?