All of the following costs should be charged against revenue in the period in which costs are incurred except for: a. manufacturing overhead costs for a product manufactured and sold in the same accounting period. b. costs which will not benefit any future period. c. costs from idle manufacturing capacity resulting from an unexpected plant shutdown. d. costs of normal shrinkage and scrap incurred for the manufacture of a product in ending inventory.

Ronald sees that his employer's stock has grown from $20 a share to $60 a share this year, while most stocks have seen only 5% growth. his employer offers to let him convert a large portion of his salary into stock options. what is not a valid reason to turn down the stock offer? a)stocks with high returns have high volatility, and ronald's company may not grow further. b)ronald may be taxed more for capital gains than he would be for employment income. c)stock options are illiquid, and ronald may not be able to use them to pay for unexpected bills. d)ronald would be committing stock fraud if he exercises the options.