Same question as before just looking for C$2$: Consider the Diamond$-$Dybvig banking model. Assume, as in the notes, that u$($c$)=($c $^(1-$ a$))/(1-$ a$)$ and that a $=2$ Assume that r $=0\mathrm{.}05$ and t $=0\mathrm{.}5$ using the Excel spreadsheet, find the optimal banking contract. What is c$?$ Round your answer to three decimal places.