Stanley's Bicycles store buys bicycles on average for $600 and sells them on average for $780. He pays a sales commission of 15% of sales revenue to his sales staff. Stanley pays $1,600 a month rent for his store, and also pays $5,000 a month to his staff in addition to the commissions. Stanley sold 140 bicycles in June. If Stanley prepares a contribution margin income statement for the month of June, what would be his operating income? O A. $2.220 OB. $10,560 O C. $100,380 OD. $109.200