Ingram Co. manufactures office furniture. During the most productive month of the year, 3,500 desks were manufactured at a total cost of $84,400. In its slowest month, the company made 1,100 desks at a cost of $46,000. Using the high-low method of cost estimation, total fixed costs are:

		$84,400
		$38,400
		$28,400
		$56,000