QUESTION 15 Pfizer has a spin off company, Eli Willy, that specializes in the distribution of one of its most popular drugs for hypertension. They move its product line from 3 sources (Greensboro, Detroit, Cleveland) to 4 destinations (St. Louis, Atlanta, Richmond, and Boston) per the information in the table that follows. Eli Willy desires to do so at minimum transportation cost. From Boston Richmond. Atlanta St. Louis Supply Cleveland Detroit 35 30 40 32 1,200 37 40 42 25 1,000 Greensboro 40 15 20 28 800 Demand 1,100 400 750 750 Eli Willy's associated transportation network is provided below. Every decision variable in the provided sketch is an Xij. representing the amount to be transported from supply node i to demand node j. You may make the assumption all the demand at each destination mode is required to be met. However, it's unnecessary to use all the supply available at a supply node. XII Cleveland S1=1,200 X12 X13 IX X21 X22 Detroit X23 S2 = 1,000 X24 X31 X32 X33 Greensboro X34 S3 = 800 Boston D1 = 1,100 Richmond D2 = 400 Atlanta D3 750 St. Louis D4 = 750 Choose the answer that reflects the appropriate supply constraint for Cleveland. Oa. X11 + X12+ X13+ X14