请问B答案哪里错了？

问题如下：

Question All else being equal, if the purchase price of inventory is increasing, a company that accounts for its inventory under last-in, first-out (LIFO) instead of first-in, first-out (FIFO) is most likely to have a:

选项：

A.higher debt-to-equity ratio.

B.lower net cash flow from operating activities.

C.lower market valuation of its common equity.

解释：

A is correct. With rising costs of inventory, a company using LIFO compared with FIFO will report a higher cost of sales and lower profits. This scenario will result in lower increments to retained earnings and a higher debt-to-equity ratio.

B is incorrect. A company using LIFO will report lower taxes paid and a higher net cash flow from operating activities.

C is incorrect. The higher cash flows under LIFO due to lower income taxes paid will increase its market value relative to an identical company that uses FIFO.