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	$386,100		Number of purchase orders
Scheduling	227,700		Number of production orders
Materials handling	428,200		Number of moves
Product development	766,000		Number of engineering changes
Production	1,467,100		Machine hours

	Number of Purchase Orders	Number of Production Orders	Number of Moves	Number of Engineering Changes	Machine Hours	Number of Units
Disk drives	3,970	330	1,430	13	1,600	1,700
Tape drives	2,500	195	650	4	9,700	4,500
Wire drives	11,800	910	3,500	24	10,800	2,900

The activity rate for the procurement activity cost pool is

a.$21.13 per purchase order

b.$66.38 per purchase order

c.$269.06 per purchase order

d.$158.68 per purchase order