Unequal Lives. Kosovski Company is considering Projects $S$ and $L,$ whose cash flows are shown below. These projects are mutually exclusive, equally risky, and are repeatable. Calculate projects' NPVs using the replacement chain method and recommend the optimal decision.

WACC: $9\%$

$\backslash$table$[[$Year$,0,1,2,3,4,],[$CFS$,-$$$100,000,$$$60,000,$$$60,000,,,],[$CFL$,-$$$100,000,$$$40,000,$$$40,000,$$$40,000,$$$40,000,]]$