The following information is available pertaining to the Production Division of Clarkson Enterprises:

	Assembly Dept.		Finishing Dept.		Total
Overhead costs	$7,500		$22,500		$30,000
Direct labor hours	7,500		2,500		10,000
Machine hours	2,500		7,500		10,000
Production information pertaining to Job 4X5:
	Assembly Dept.		Finishing Dept.		Total
Prime costs	$1,250		$0		$1,250
Direct labor hours	250		0		250
Machine hours	0		0		0
Units produced	500		0		500

What is the plantwide overhead rate based on direct labor hours?

a.$9.00

b.$1.50

c.$1.00

d.$3.00