Which of the Following Statements Is FALSE

Which of the following statements is FALSE?

A) Because only the tax consequences of depreciation are relevant for free cash flow, we should use the depreciation expense that the firm will use for tax purposed in our free cash flow forecasts.
B) A firm generally identifies its marginal tax rate by determining the tax bracket that it falls into based on its overall level of pre-tax income.
C) Free Cash Flow = (Revenues - Costs) × (1 - τ_c) - Capital Expenditures - ΔNWC + τ_c × Depreciation.
D) Net working capital is the difference between current liabilities and current assets.