Three vendors are proposing good unit prices $to$ a retailer according $to$ the following quantity discount model:

Vendor

Number $of$ units $to$ buy

Unit price $($$$)$

$A$

$1-199$

$65$

$B$

$200-599$

$59$

$C$

$600+$

$56$

The setup cost $(S)$ and the holding cost $(H)$ are $$275$ per order and $$14$ per unit, respectively. Annual demand $(D)$ for these units $is$ set $at700$ per year. Accordingly, the total cost $(TC)of$ inventory $(including$ the price $of$ all the inventoried units$)$ for Vendor $A,B$ and $C$ are about $${?}_{{?}_{?}}{?}_{{?}_{?}},$ $${?}_{{?}_{?}}{?}_{{?}_{?}},$ and $ ${?}_{(}{)}_{{?}_{?}}{?}_t$housand dollars, respectively. This makes Vendor ${?}_{(}{)}_{{?}_{?}}$ the best $(lowestcost)$ deal. Hint: This $is$ a quantity discount model. Compute first the economic order quantity $Q.$ Then use the equation for the total cost $TCas$ a function $of$ setup cost, holding cost and dollar value $of$ the inventory for each $A,B$ and $C$ choices.