ungry Hoagie's has identified the following two mutually exclusive projects:

At what rate would you be indifferent between these two projects? a$.$

$17\mathrm{.}34\%$

b$.17\mathrm{.}72\%$

c$.19\mathrm{.}41\%$

d$.19\mathrm{.}69\%$

e$.20\mathrm{.}28\%$