Murray Inc. Is considering two mutually exclusive Projects $S$ and $L$ with the estimated cash flows shown below. What's the crossover rate?

$\backslash$table$[[$Year$,0,1,2,3,4],[$CFS$,-$$$2,000,750,600,400,100],[$CFL$,-$$$2,150,200,530,750,800]]$

$$ a$.7\mathrm{.}02\%$

b$.3\mathrm{.}95\%$

c$.11\mathrm{.}83\%$

d$.0\mathrm{.}19\%$