Three investment alternatives $($A$,$ B$,$ C$)$ are under consideration. The discounted present worths

$($PW$)$ are $$30,000,$ $$24,000,$ and $$18,000,$ respectively. The three alternatives have very different

rankings on time required to fill a customer$$s orders $($T$)$ and flexibility $($F$).$ The following weights

have been assigned to the three factors $($PW$,$ T$,$ F$)$: $40,35,$ and $25.$ On a scale from $1$ to $10,$ the

following ratings have been assigned to the three alternatives for the three factors