Sunlight Design Corporation sells glass vases at a wholesale price of $3.50 per unit. The variable cost to manufacture is $1.75 per unit. The monthly fixed costs are $7,500. Its current sales are 27,000 units per month. If the company wants to increase its operating income by 30%, how many additional units must it sell? (Round any intermediate calculations to two decimal places and your final answer up to the nearest whole unit.) O A. 6,815 glass vases O B. 7,500 glass vases O C. 33,815 glass vases O D. 94,500 glass vases