Question $3.$ Consider two projects with the following cash flows:

The company requires a return of $7$ percent on investment.

a$)$ Calculate the net present value $($NPV$),$ internal rate of return $($IRR$),$ and profitability index $($PI$)$ for prolect A$.$

b$)$ Which project or projects should be accepted if the projects are independent? Why?

c$)$ Which project should be accepted if the projects are mutually exclusive? Why?