Industrial Technologies began manufacturing microprocessors in the 1990s. Since its inception, the firm has used LIFO to value its inventories and has faced steadily increasing inventory input costs. During 2011, the firm's inventory quantity decreased from 118,220 units to 56,793 units. Which of the following inventory methods results in the most cumulative tax savings since the firm began business? Oa. Weighted Average b. FIFO O c. LIFO d. None of the above is correct