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An electric switch manufacturing company is trying to decide between three different assembly methods. Method A has an estimated first cost of $$44000,$ an annual operating cost $($AOC$)$ of $$5000,$ and a service life of $2$ years. Method B will cost $$84000$ to buy and will have an AOC of $$10000$ over its $4-$year service life. Method C costs $$143000$ initially with an AOC of $$5000$ over its $8-$year life. Methods A and B will have no salvage value, but Method C will have equipment worth $10\mathrm{.}00\%$ of its first cost.

Perform a present worth analysis to select the method at $i=13\mathrm{.}00\%$ per year. $($Include a minus sign if necessary.$)$

The present worth of method $A$ is $

The present worth of method B is $

The present worth of method $C$ is $

Method is selected.