2. The Mt. Airy Water Resource District in Jamaica is charged with installing a freshwater supply system to serve the residents of seven small rural communities in the sparsely populated Blue Mountains. Figure 2 shows the feasible connections between these communities. Node 3 represents the reservoir. Link values are the estimated construction costs, in Jamaican dollars, for installing the water pipes and pumping equipment. Find the minimum cost plan for interconnecting the severn communities with the reservoir. Describe how you found the plan. [20points] 300 255 120 100 180 105 200 75 100 125 230 70 80 145 60 Reservoir Figure2