Darwin Company sells glass vases at a wholesale price of $4.00 per unit. The variable cost to manufacture is $1.75 per unit. The monthly fixed costs are $8,000. Its current sales are 29,000 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 to the nearest whole number.) OA. 8.000 glass vases O B. 36,634 glass vases O C. 7,634 glass vases O D. 116.000 glass vases