2B. Union Express has 60 tons of cargo that needs to be shipped from Boston to Dallas. The shipping capacity on each of the routes Union Express planes fly each night is shown in the following table: Capacity (in Nightly Flight Segments tons) Boston to Baltimore 30 25 Boston to Pittsburgh Boston to Cincinnati Baltimore to Atlanta Baltimore to Cincinnati 35 22 1 10 5 Pittsburgh to Atlanta Pittsburgh to Chicago 20 Cincinnati to Chicago 505 15 15 Cincinnati to Memphis 5 Atlanta to Memphis 25 Atlanta to Dallas 10 Chicago to Memphis 20 Chicago to Dallas 14 Memphis to Dallas 30 Memphis to Chicago 15 a. Solve for maximum flow for this network by creating a network optimization model? b. Will Union Express be able to move all 60 tons from Boston to Dallas in one night? Type YES or NO in cell I:17