please answer this question quick (will like up)

Mallard Corporation uses the product cost method of product pricing Below is cost information for the production and sale of 45,000 units of its sole product. Mallard desires profit equal to 12 return on invested sets of $300,000 Fixed factory overhead cost 302.000 Fixed selling and administrative costs 45.000 Variable direct materials cost per unit 5.50 Variable direct labor cost per unit 7.65 Variable factory overhead cost per unit 2.25 Variable selling and administrative cost per unit 0.90 The unit selling price for the company's product is O. 519.85 Ob. 522.05 c. $21.25 Od. 515,75