Referring to the table below, what is the gross margin? (Click the icon to view the table.) A. $140,000 OB. $145,000 OC. $90,000 OD. $105,000 Table 13 - X Sales revenue $480,000 Cost of goods sold 300,000 Sales discounts 20,000 Sales returns and allowances 15,000 Operating expenses 85.000 Interest revenue 5,000 Print Done