Menu costs of inflation: a. are best described as the costs firms incur by having to change prices either on paper or in the computer. b. are the costs involved with only those goods whose prices are rising faster than inflation; this basket of goods represents the "menu." c. literally mean that restaurants are the most affected by inflation because they are constantly printing new menus. d. mean that because we can choose what goods we consume, we have a menu of inflation to choose from and we can "opt out" by consuming a different "basket" of consumer goods. e. are the costs one incurs when shopping for lower prices.