Delos, Inc. reports the following information for April: Gamma 800 units $800 500 Sigma Units sold 3,000 units Sales price per unit $250 Variable manufacturing cost per unit 150 Sales commission per unit: Sigma: 6% of sales price 15 Gamma: 10% of sales price What is the contribution margin of Sigma? 80 O A. $705,000 OB. $255,000 O c. $300,000 OD. $145,000