Greystone, Inc., has the following mutually exclusive projects:

Year Project A Project B

$0$$ $13,800$$ $9,200$

$18,4003,900$

$27,0003,400$

$32,1005,800$

a$.$ Calculate the payback period for each project. $($Do not round intermediate calculations and round your answers to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

b$.$ Based on the payback period, which project should the company accept?

c$.$ If the appropriate discount rate is $10$ percent, what is the NPV for each project? $($Do not round intermediate calculations and round your answers to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

d$.$ Based on the NPV$,$ which project should the company accept?