Example$-1$

You have four possible projects but can only choose one. Project $A$ is being done over a six$-$year period and has a net present value $($NPV$)$ of $$70,000.$ Project $B$ is being done over a three$-$year period and has an NPV of $$30,000.$ Project $C$ is being done over a ten$-$year period and has an NPV of $$40,000.$ Project $D$ is being done over a one$-$year period and has an NPV of negative $$160,000.$ Which project should you choose?