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	$366,300		Number of purchase orders
Scheduling	223,100		Number of production orders
Materials handling	405,700		Number of moves
Product development	795,600		Number of engineering changes
Production	1,448,000		Machine hours

	Number of Purchase Orders	Number of Production Orders	Number of Moves	Number of Engineering Changes	Machine Hours	Number of Units
Disk drives	3,900	330	1,210	12	1,500	2,100
Tape drives	2,000	195	570	7	9,500	3,700
Wire drives	11,500	860	3,900	28	11,300	2,400

The activity rate for the procurement activity cost pool is

a.$264.48 per purchase order

b.$161.08 per purchase order

c.$21.05 per purchase order

d.$64.93 per purchase order