Q$2$:Two mutually exclusive projects offer the following cash flows:Year CF$1$ CF$20-22000-220001800020002100001200031200010000420001000$ a$)$ What is the IRR of each of the projects? Which project should the company accept if required rate of return $=11\%?$b$)$ If the required return is $11\%$ what is the NPV for each of the projects?c$)$ Profitability index