The management of London Corporation is considering the purchase of a new machine costing $750,000. In addition to this information, use the following data in determining the acceptability in this situation: Year Income from Operations Net Cash Flow 1 $37,500 $187,500 2 37,500 187,500 3 37,500 187,500 4 37,500 187,500 5 37,500 187,500 The average rate of return for this investment is _____. a. 10% b. 15% c. 25% d. 5%