4. The controller for Wolfe Machining has established the following overhead cost pools and cost drivers: Budgeted Overhsad Cost Cost Driver Machine setups Material handling Quality control inspection Other overhead costs Total Number of setups Units of raw material Number of inspections Machine hours $240,000 90,000 48,000 $538,000 Budgeted Level Machine setups Material handling Quality control Other overhead for Cost Driver 200 setups 60,000 units 1,200 inspections 20,000 machine hours Pool Bate S1,200 per setup $1.50 per unit S40 per inspection S8 per machine hour Order no. 715 has the following production requirements: Machine setups: 7 Raw material: 11,200 units Inspections: 16 Machine hours: 850 Required A. Compute the total overhead that should be assigned to order no. 715 by using activity-based costing B. Suppose that Wolfe were to use a single, predetermined overhead rate based on machine hours. Compute the rate per hour and the total overhead assigned to order no. 715. C. True or False: Using activity-based costing system rather than traditional costing system decreases total overhead costs