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Advanced Enterprises reports year - end information from 2018 as follows: Sales (161,000 units) Cost of goods sold Gross margin Operating expenses Operating income $966,000 644,000 322,000 267,000 $55,000 Advanced is developing the 2019 budget. In 2019 the company would like to increase selling prices by 14.5%, and as a result expects a decrease in sales volume of 11%. All other operating expenses are expected to remain constant. Assume that cost of goods sold is a variable cost and that operating expenses are a fixed cost. Should Advanced increase the selling price in 2019? O A. Yes, because sales revenue increases for 2019. B. Yes, because operating income increases for 2019. C. No, because sales volume decreases for 2019. D. No, because gross margin decreases for 2019