SOLVE a and b

4. [15 points] Sunshine Cosmetics is evaluating five possible locations to build a factory \& distribution center. Cost estimated from the accounting department are provided below. The annual demand is estimated to be 30,000 units. a. [5 points] Which location provides the least cost for the estimated demand? b. [10 points] If the demand can be as low as 25,000 units and as high as 40,000 units, is the location selected in (a) the best choice? Explain your answer. (Hint: change the demand estimate and find the least cost location)