Determine if the overhead allocated to the product relates to a single plantwide overhead rate method, multiple production department factory overhead rate method, or activity-based costing method. Product A: $210 allocated by number of setups, $325 allocated by number of purchase orders, and $220 allocated by number of engineering hours. Product B: $284 allocated by direct labor in Department Z and $590 allocated by machine hours in Department Y. Product C: $475 allocated by machine hours.