Which of the Following Statements Regarding Cash Flow Is Correct

Which of the following statements regarding cash flow is correct?

A) Cash flow measures changes in the firm's cash account.
B) Cash flow should be recognized only when it has accrued according to GAAP practices.
C) In evaluating capital budgeting decisions, cash flows should be valued on a pre-tax basis for consistency's sake.
D) After-tax cash flow is usually identical to accounting profits when accrual accounting is used for financial statement purposes.
E) Incremental cash flows should include opportunity costs but ignore sunk costs.