Sunland Dairy has four product lines: sour cream, ice cream, yogurt, and butter. The total costs of producing the milk base for the products is $46300 which has been allocated based on litres of milk base used by each product. Results of July follow:

	Sour Cream	Ice Cream	Yogurt	Butter	Total
Units sold	1700	770	530	5700	8700
Revenue	$6500	$15000	$12300	$24900	$58700
Variable departmental costs	4500	10200	7500	11200	33400
Fixed costs	4700	800	1800	5600	12900
Net income (loss)	$(2700)	$4000	$3000	$8100	$12400

How much are total joint costs of the products?

$33400

$12900

$46300

$12400