The question below is based on the following information: A manufacturer produces and sells an average of

two machines per day, $7$ days per week.

The machines cost $$20,000$ each. The annual cost of carrying and transporting finished

goods inventory is $15\%.$ Which of the following modes of transportation is most

economical?

$(1$ Point$)$

A$)$ Truck

$($B$)$ Rail

$($C$)$ Plane

$($D$)$ Ship