4. The Staff of Jefferson Medical Services has estimated the following net cash flows for a food services operation that it may open in its outpatient clinic:Year Expected net cash flow0 ($100,000)1 30,0002 30,0003 30,0004 30,0005 30,0005(salvage value) 20,000The Year o cash flow is the net investment outlay, while the final amount is the terminal cash flow. (The clinic is expected to move to a new building in five years.) All other flows represent net operating cash flows. Jefferson’s corporate cost of capital is 10%.a. What is the project’s IRR??b. Assuming the project has average risk, what us its NPV??c. Now assuming that operating cash flows in Year 1 through 5 could be as low as $20,000 or as high as $40,000. Furthermore, the salvage value cash flow at the end of Year 5 could be as low as $0 or as high as $30,000. What is the worst case and best case IRR?? The worst case and best case NPV?