A manager must make a decision on delivery alternatives. There are two carriers, A and $B.$ Both offer a two$-$day rate. In addition, $A$

offers a three$-$day rate and a nine$-$day rate, and $B$ offers a four$-$day rate and a seven$-$day rate. Three hundred boxes are to be

delivered and the freight cost for the whole lot for each option is given below. Annual holding cost is $30$ percent of unit cost, and

each box has a cost of $$200.$ Assume $365$ days per year. Which delivery alternative would you recommend?

Carrier a options

three day, two day or nine day

carrier b options

seven day, two day, four day.