When comparing two projects with diflerent Iives, why do you compule an annuty with an equivalent present value $($PV$)$ to the net present vabue $($NPV$)?$

A$.$ so that you can see which project has the greatest net present value $($NPV$)$

B$.$ to reduce the danger that changes in the estimate of the discount rate will lead to choosing the project with a shorier limetrame

C$.$ to ensure that cash flows from the project with a longer life that ocour afler the proipct with the shorter Me has ended are considered

D$.$ so thai the projects can be compared on their cost or value creatod per yoar