Whitestone Products is considering a new project whose data are shown below. The required equipment has a 4-year tax life, and the straight-line method is used for Years 1 through 4. Revenues and other operating costs are expected to be constant over the project's 10-year expected operating life. What is the project's Year 4 cash flow? $70,000 $42,500 $25,000 35.0% Equipment cost (depreciable basis) Sales revenues, each year Operating costs (excl. deprec.) Tax rate a. $13.850 b. $17.500 O c. $11,904 O d. $12.531 O e. $13,190