Explain how the choice of one of the following ac-counting methods over the other raises or lowers acompany's net income during a period of continuinginflation.

(a) Use of FIFO instead of LIFO for inventory cost-ing

(b) Use of a 6-year life for machinery instead of a 9 -year life

(c) Use of straight-line depreciation instead of ac-celerated declining-balance depreciation