please answer

bus Please refer to the Network Diagram below. Let Xij represent the number of units ules shipped from i to j, where i= 1, 2, 3 and j=4, 5, 6. The objective function is to minimize overall transportation cost while making sure all demand is met. Answer les each question independently of the other questions. Unit shipping costs are ussions intentionally hidden from the diagram. zzes Retailers Demand Supply Plants 50 100 50 5 25 50 110 Under which of the following situations (consider them separately) would we have demand shortages? 1. Route 1-6 is removed.Under which of the following situations (consider them separately) would we have demand shortages? 1. Route 1-6 is removed. II. Retailer 4's demand increases to 60 units. Only II O Neither I nor II Both I and II Only