g The following information is from​ Megabux, Inc.'s annual report for the years ended December​ 31: 2012 2011 2010 Sales ​$120,000 ​$110,000 ​$100,000 Cost of goods sold ​58,000 ​52,000 ​46,000 Operating expenses ​48,000 ​44,000 ​42,000 Interest expense ​12,000 ​9,000 ​6,000 Net income ​$ ​ 2,000 ​$ ​ 5,000 ​$ ​ 6,000 Refer to the Megabux annual report above. Which of the following describes the trend in the profit margin ratio for the three−year ​period? A. There is no significant change in the ratio over the three years. B. The ratio is getting worse because expenses are growing faster than sales. C. The ratio is getting worse because Megabux has increased its selling prices. D. The increase in sales each year is more than enough to cover the increase in expenses.