help pls

1) Discount Jewelry Company sells an anniversary diamond necklace for $290. The variable cost to make the necklace is $165. The fixed costs are $10,000 per month. Discount Jewelry sold 1,000 necklaces during this month. Calculate the operating income (loss) for this month. A) $125,000 B) $115,000 C) $165,000 D) $10,000 Net sales revenue Variable costs Contribution margin Fixed costs Operating income (loss)