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	$342,900		Number of purchase orders
Scheduling	219,900		Number of production orders
Materials handling	482,000		Number of moves
Product development	722,700		Number of engineering changes
Production	1,425,800		Machine hours

	Number of Purchase Orders	Number of Production Orders	Number of Moves	Number of Engineering Changes	Machine Hours	Number of Units
Disk drives	3,990	430	1,460	12	2,000	1,700
Tape drives	1,900	205	650	7	9,700	4,100
Wire drives	11,400	730	4,100	20	11,000	3,000

The activity rate for the procurement activity cost pool is

a.$62.81 per purchase order

b.$161.10 per purchase order

c.$251.21 per purchase order

d.$19.83 per purchase order