Suppose Wyatt's food processing company is planning to expand their production, which of the following would indicate that Wyatt is enjoying economies of scale: a) or c) are correct Adding 15 percent more machines, increases output by 10 percent b) or d) are correct As a result of hiring 10 percent more workers and purchasing 10 percent more machines, the average cost of production increases by only 5 percent Output increases by 20 percent when they hire 5 percent more workers