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	$341,500		Number of purchase orders
Scheduling	248,400		Number of production orders
Materials handling	409,500		Number of moves
Product development	782,000		Number of engineering changes
Production	1,509,500		Machine hours

	Number of Purchase Orders	Number of Production Orders	Number of Moves	Number of Engineering Changes	Machine Hours	Number of Units
Disk drives	3,910	260	1,500	14	1,900	1,700
Tape drives	1,800	155	630	7	9,100	3,600
Wire drives	12,300	870	4,100	29	10,300	2,800

The activity rate for the procurement activity cost pool is

a.$265.76 per purchase order

b.$193.31 per purchase order

c.$18.96 per purchase order

d.$70.87 per purchase order