Panamint Systems Corporation is estimating activity costs associated with producing disk drives, tapes drives, and wire drives. The indirect labor can be traced to four separate activity pools. The budgeted activity cost and activity base data by product are provided below. Activity Cost Activity Base Procurement $322,700 Number of purchase orders Scheduling 211,900 Number of production orders Materials handling 418,900 Number of moves Product development 780,300 Number of engineering changes Production 1,547,500 Machine hours Number Number Number of Purchase Orders Number of Production Orders of Number of Engineering Changes of Machine Hours Moves Units Disk drives 4,040 310 1,220 15 2,100 1,500 Tape drives 2,200 235 750 8 8,300 4,200 Wire drives 12,600 700 4,500 20 11,900 2,100 The activity rate for the procurement activity cost pool is a. $17.13 per purchase order b. $259.20 per purchase order c. $69.39 per purchase order d. $170.20 per purchase order