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	$319,400		Number of purchase orders
Scheduling	247,100		Number of production orders
Materials handling	458,900		Number of moves
Product development	742,700		Number of engineering changes
Production	1,488,400		Machine hours

	Number of Purchase Orders	Number of Production Orders	Number of Moves	Number of Engineering Changes	Machine Hours	Number of Units
Disk drives	3,840	410	1,390	12	2,300	2,100
Tape drives	2,100	125	670	3	8,400	3,600
Wire drives	11,500	730	4,300	20	10,400	2,200

The activity rate for the product development cost pool is

a.$44,562 per engineering change

b.$95,490 per engineering change

c.$10,610 per engineering change

d.$21,220 per engineering change