Which of the Following Statements Is CORRECT

Which of the following statements is CORRECT?

A) under current laws and regulations, corporations must use straight-line depreciation for all assets whose lives are 3 years or longer.
B) if firms use accelerated depreciation, they will write off assets slower than they would under straight-line depreciation, and as a result projects' forecasted npvs are normally lower than they would be if straight-line depreciation were required for tax purposes.
C) if they use accelerated depreciation, firms can write off assets faster than they could under straight-line depreciation, and as a result projects' forecasted npvs are normally lower than they would be if straight-line depreciation were required for tax purposes.
D) if they use accelerated depreciation, firms can write off assets faster than they could under straight-line depreciation, and as a result projects' forecasted npvs are normally higher than they would be if straight-line depreciation were required for tax purposes.
E) since depreciation is not a cash expense, and since cash flows and not accounting income are the relevant input, depreciation plays no role in capital budgeting.