Caballes Clinic uses client-visits as its measure of activity. During November, the clinic budgeted for 2,700 client-visits, but its actual level of activity was 2,670 client-visits. The clinic has provided the following data concerning the formulas used in its budgeting and its actual results for November:

Data used in budgeting:

	Fixed element per month	Variable element per client-visit
Revenue		$42.30
Personnel expenses	$23,000	$13.00
Medical supplies	850	4.40
Occupancy expenses	4,700	1.10
Administrative expenses	2,700	0.30
Total expenses	$31,250	$18.80

Actual results for November:

Revenue	$114,009
Personnel expenses	$21,678
Medical supplies	$12,865
Occupancy expenses	$7,904
Administrative expenses	$6,331

The occupancy expenses in the flexible budget for November would be closest to:

a)$7,904

b)$3,204

c)$7,670

d)$7,637