Janina, Incorporated, has the following mutually exclusive projects.

Year Project A Project B

$0$$ $20,000$$ $23,000$

$115,20014,300$

$25,9008,100$

$32,1007,100$

a$-1.$ Calculate the payback period for each project. $($Do not round intermediate calculations and round your answers to $3$ decimal places, e$.$g$.,32\mathrm{.}161.)$

a$-2.$ If the company's payback period is two years, which, if either, of these projects should be chosen?

multiple choice $1$

Project A

Project B

Both projects

Neither project

b$-1.$ What is the NPV for each project if the appropriate discount rate is $15$ percent? $($A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answers to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

b$-2.$ Which, if either, of these projects should be chosen if the appropriate discount rate is $15$ percent?

multiple choice $2$

Project A

Project B

Both projects

Neither project