please answer the questions completely.

The cash flow tax savings generated as a result of a firm's tax-deductible depreciation expense is called the O aftertax salvage value. aftertax depreciation savings. O depreciation tax shield O depreciable basis O operating cash flow. QUESTION 18 Money that has been or will be paid regardless of the decision whether or not to proceed with the project is considered as part of the initial investment in the project. e an opportunity cost o cannibalization. e a sunk cost